OM5721_技术文档

INTEGRATED CIRCUITS

DATA SHEET

OM5721

STB5660 (Set-Top Box) STB

concept

1999 May 05

Product speciﬁcation

Supersedes data of 1998 Aug 18

File under Integrated Circuits, IC02

Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

CONTENTS

5

SOFTWARE DESCRIPTION

5.1

Software overview

General Software Resources

Application layer

System Control layer

Platform layer

I/O device drivers

General software resources

System Control layer

Platform layer

Application layer

Top level menu

Installation menu

Tuning menu

1

FEATURES

5.1.1

5.1.2

5.1.3

5.1.4

5.1.5

5.2

5.3

5.4

5.5

5.5.1

5.5.2

5.5.3

5.5.4

1.1

SAA7214 features

1.1.1

1.1.2

1.1.3

1.2

1.2.1

1.2.2

1.2.3

1.2.4

1.2.5

1.2.6

General SAA7214 features

MPEG2 systems features

External interface features

SAA7215 features

General SAA7215 features

CPU related features

MPEG2 system features

MPEG2 video features

MPEG2 audio features

Graphics features

Feature demonstration menu

2

GENERAL DESCRIPTION

6

DEVELOPMENT ENVIRONMENT

2.1

Introduction

2.2

2.3

2.3.1

2.3.2

Reference design goal

Benefits

Key system benefits

Key IC benefits

6.1

Summary of the STB5660 kit

The hardware

The software

Documentation

Test reports

6.1.1

6.1.2

6.1.3

6.1.4

6.2

6.3

6.4

6.5

3

4

BLOCK DIAGRAM

HARDWARE

How to get started

Hardware interface with the STB5660

Software interface with the STB5660

Running ‘Hello world’

4.1

4.2

4.2.1

4.2.2

4.3

IC list

Main board

SAA7214

SAA7215

Front-end

7

CONTENTS LIST FOR STB5660

DEFINITIONS

8

4.4

Front panel

LNB interface

IR

Keys

SCART control

Memory

9

LIFE SUPPORT APPLICATIONS

PURCHASE OF PHILIPS I²C COMPONENTS

4.4.1

4.4.2

4.4.3

4.4.4

4.5

10

4.5.1

4.5.2

4.5.3

4.5.4

4.5.5

4.5.6

4.6

Non-Volatile Memory (NVM)

DRAM

Boot ROM

Flash

Video and Graphics RAM

Memory options

Connectors

1999 May 05

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Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

1

FEATURES

1.1

SAA7214 features

1.1.1

GENERAL SAA7214 FEATURES

• Internal PR3001 32-bit RISC processor running at

40.5 MHz

• An IEEE 1284 interface supporting master and slave

modes. Usable as a general purpose port.

• Comprehensive driver software and development tool

support

• 3 UART (RS232) data ports with DMA capabilities

(187.5 kbits/s) including hardware flow control signals

RXD, TXD, RTS, CTS for modem support

• A JTAG interface for board test support

• 1-kbyte data and 4-kbyte instruction caches

(write-through style).

• Two dedicated smart-card reader interfaces (ISO 7816

1.1.2

MPEG2 SYSTEMS FEATURES

compatible) with DMA capabilities

• Parsing of Transport Stream (TS), Philips

Semiconductors hardware and proprietary software

data streams. Maximum input rate is 108 Mbits/s.

• Two I²C-bus master/slave transceivers supporting the

standard (100 kbits/s) and fast (400 kbits/s) I²C-bus

modes

• A Digital Video Broadcasting (DVB) compliant

descrambler core, incorporating storage for up to

6 control word pairs

• 32 general purpose, bidirectional I/O interface pins,

which may also be used as interrupt inputs.

• 2 Pulse Width Modulated (PWM) outputs with 8-bit

• Hardware section filtering based on 32 different Packet

Identifiers (PIDs) with a flexible number of filter

conditions (8 or 4-byte condition plus 8 or 4-byte mask)

per PID and a total filter capacity of 40 (8-byte condition

checks) or up to 80 (4-byte condition checks) filter

conditions

resolution.

1.2

SAA7215 features

1.2.1

GENERAL SAA7215 FEATURES

• Single or double external synchronous DRAM organized

as 1M × 16 or 2 × 1M × 16 interfacing at 81 MHz. Due to

efficient memory use in MPEG decoding, more than

1 Mbit is available for graphics in the single SDRAM

configuration whereas 17 Mbits are available in the

double SDRAM configuration targeted to BSkyB 3.00

and Canal+ 4.0 specifications.

• 4 Transport Stream/Packetized Elementary Stream

(PES) filters for retrieval of data at TS or PES level for

applications such as subtitling, TXT or retrieval of

private data

• Flexible Direct Memory Access (DMA) based storage of

the 32 section substreams and 4 TS/PES data

substreams in the external memory

• Dedicated input for compressed audio and video in PES

or Elementary Stream (ES) in byte wide or bit serial

format. Accompanying strobe signals distinguish

between audio and video data.

• System time base management with a double counter

mechanism for clock control and discontinuity handling

• 2 Presentation Time Stamp (PTS)/Decoding Time

Stamp (DTS) timers

• Optimum compatibility with the SAA7214 Transport

• A General Purpose/High Speed (GP/HS) filter which can

serve as alternative input from e.g. IEEE 1394 devices.

It can also output either scrambled or descrambled TS

to IEEE 1394 devices.

Mega Instructions Per Second (TMIPS) controller

• Flexible memory allocation under control of the external

Central Processing Unit (CPU) enables optimized

partitioning of memory for different tasks.

• Boundary scan testing implemented.

1.1.3

EXTERNAL INTERFACE FEATURES

• A 16-bit microcontroller extension bus supporting

DRAM, Flash, (E)PROM and external memory mapped

I/O devices. It also supports a synchronous interface to

communicate with the integrated MPEG Audio Video

Graphics (AVG) decoder SAA7215 at 40.5 Mbytes/s.

1.2.2

CPU RELATED FEATURES

• External SDRAM self test

• Asynchronous interface possible with external

microcontroller

1999 May 05

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Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

• Support of fast DMA transfer

• Nominal video input buffer size for MP at ML 27-Mbit

• High speed/low latency interface with second graphics

• Decoding and presentation can be independently

SDRAM

handled under CPU control.

• Byte access to the full SDRAM in the upper 16-Mbit

• Various trick modes under control of external

address range

microcontroller

• Fast 16-bit data plus 22-bit address synchronous

interface with external controller at up to 40.5 MHz

• Freeze field/frame on I- or P-frames; restart on I-picture

• Freeze field on B-frames; restart at any moment

• Support of Motorola ColdFire and 68xxx interfaces as

well as LSI L64108 interface.

• Scanning and decoding of I- or I- and P-frames in a

IBP sequence

• Single step mode

1.2.3

MPEG2 SYSTEM FEATURES

• Repeat/Skip field for time base correction

• Repeat/Skip frame for display parity integrity.

• Support for seamless time base change (edition)

• Processing of errors flagged by channel decoding

section.

1.2.5

MPEG2 AUDIO FEATURES

• Decoding of 2 channel, layer I and II MPEG audio.

Support for mono, stereo, intensity stereo and dual

channel mode.

1.2.4

MPEG2 VIDEO FEATURES

• Decoding of MPEG2 video up to main level, main profile

• Output picture format: CCIR-601 4 : 2 : 2 interlaced

pictures. Picture format 720 to 576 at 50 Hz or

720 to 480 at 60 Hz.

• Constant and variable bit rates up to 448 kbits/s

• Supported audio sampling frequencies: 48, 44.1, 32, 24,

22.05 and 16 kHz

• Support of constant and variable bit rates up to

15 Mbits/s for the elementary stream

• Selectable output channel in dual channel mode

• Dynamic range control at output.

• Digital video input/output interface on 8-bit,

27 MHz (CbYCrY multiplexed bus), at a CCIR-656

format

• Independent channel volume control and programmable

inter-channel crosstalk through a baseband audio

processing unit.

• Analog video output interface on both the RGB and

Y/C/CVBS formats (internal digital encoder)

• Muting possibility via (external) controller. Automatic

• Horizontal and vertical pan and scan allows the

muting in case of errors.

extraction of a window from the coded picture

• Flexible horizontal scaling from 0.5 up to 4 allows easy

aspect ratio conversion including support for 2.21 : 1

aspect ratio movies. In case of shrinking an anti-aliasing

pre-filter is applied.

• Generation of ‘beeps’ with programmable tone height,

duration and amplitude

• Support for up to 8 channels linear Pulse Code

Modulation (PCM) elementary audio streams with 8, 16,

20 and 24 bits/sample and bit rates up to 6.144 Mbits/s

• Vertical scaling with fixed factors 0.5, 0.75 factor 0.75 is

used for letter-box presentation, 1 or 2. Factor 0.5

realizes picture shrink

• 96 kHz Linear Pulse Code Modulated (LPCM) samples

will be mapped to a 48 kHz multi-channel format

• Factor 2 can be used for up-conversion of pictures with

• Volume control for linear PCM samples in three steps:

−6 dB, −12 dB and −18 dB

288 (240) lines or less

• Horizontal and vertical scaling can be combined to scale

pictures to ¹⁄₄their original size, thus freeing up screen

space for graphic applications like Electronic Program

Guides (EPGs)

• Burst-formatting of AC-3 elementary streams and

MPEG-2 multi-channel streams in ES or PES format for

interconnection with an external multi-channel decoder

via the digital audio output or the IEC 958 output

• Non full screen MPEG pictures can be displayed in a

box of which position and background colour are

adjustable by the external microcontroller. Structured

background is available as part of the graphic features.

1999 May 05

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STB5660 (Set-Top Box) STB concept

OM5721

• Serial multi-channel digital audio output with 16, 18, 20

or 24 bits/sample, compatible either to I²S or Japanese

formats. Output can be set to high-impedance mode via

the external controller.

• Internal support for fast 3-D block moves in external

SDRAM through Data Manipulation Unit (DMU)

• DMU allows format conversion and bit manipulation

from a chained list of instructions

• Serial Sony/Philips Digital Interface (SPDIF) (IEC 958)

audio output. Output can be set to high-impedance

mode.

• Graphics mechanism can be used for signal generation

in the vertical blanking interval. Useful for teletext, wide

screen signalling, closed caption, etc.

1.2.6

GRAPHICS FEATURES

• Support for a single down loadable cursor of 1K pixel

with programmable shape

• Graphics is presented in boxes independent of video

format

• Supported shapes are 8 × 128 pixels, 16 × 64 pixels,

32 × 32 pixels, 64 × 16 pixels and 128 × 8 pixels

• Boxes can be up to full screen allowing double buffer

display mechanism

• Cursor colours obtained via two 16 entry CLUTs with

YCbCrT at 6, 4, 4 respectively

• Two independent graphics planes are available for

background and/or graphics overlay

• 2 bits and RGBT at 4, 4, 4 respectively 4 bits (or 4, 5, 3,

respectively 4 bits). Mixing of cursor with video and

graphics in 4 levels.

• Two independent data paths with RGB 4 : 4 : 4 and

YCbCr 4 : 2 : 2 formats available with independent

mixing

• Cursor can be moved freely across the screen without

overlapping restrictions.

• RGB path transparent to YCbCr format

• Screen arrangement of boxes is determined by display

list mechanism which allows for multiple boxes,

background loading, fast switching, scrolling,

overlapping and fading of regions

2

GENERAL DESCRIPTION

Introduction

2.1

Philips Semiconductors Set-Top Box (STB) concept is a

Digital Media Broadcast (DMB) platform designed to help

developers bring the right product to market at the right

time, with a minimum of risk. A complete hardware and

software solution for fully-featured digital cable, satellite

and terrestrial system, it is based around a powerful,

programmable embedded microprocessor core, allowing

manufacturers to develop and rapidly evaluate system

designs and test application software.

• Real-time anti-flickering performed in hardware.

Programmable hardware available for off-line

anti-flickering.

• Hard-edged or soft-edged wiping of regions available

• Support of 2, 4, 8, 16 bits/pixel in fixed bit maps format

or coded in accordance to the DVB variable/run length

standard for region based graphics

• Chrominance down-sampling filter switched per region

This programmability is the key to maintaining flexibility

and reducing risk. Application software can be easily

modified to meet changing requirements, so highly

featured and differentiated STB designs can be brought

quickly to market. It also allows flexible handling of

graphics, so manufacturers can implement menus,

electronic program guides and the sophisticated

graphics-based features expected by today’s users.

• Display colours are obtained via Colour Look-Up Tables

(CLUT) or directly from bitmap. CLUT output can be

YCbCrT at 8-bit for each signal component thus

enabling 16 M different colours and 6-bit for T which

gives 64 mixing levels with video. CLUT output can also

be RGBT with same resolutions. Non-linear processing

available by means of LUTs.

Sophisticated hardware is supported by a full suite of

software, developed in partnership with customers to meet

real-world needs and provide the reliability required for

consumer electronics products.

• Conversion matrices available to allow any format on

any different data path (RGB or YCbCr)

• Graphics boxes may overlap vertically even inside one

graphics layer due to the use of flexible chained

descriptors

1999 May 05

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STB5660 (Set-Top Box) STB concept

OM5721

2.2

Reference design goal

2.3

Beneﬁts

The Philips STB concept STB5660 is a reference design

of a complete hardware and software solution intended for

the digital satellite receiver Set-Top Box market. This

reference design addresses the potential customer base

who is targeting the new world of digital media

broadcasting. The reference platform for a Set-Top Box

combines the key ICs, the SAA7214 transport MPEG

source decoder and the SAA7215 AVG decoder/video

encoder, and the software to run a Set-Top Box.

2.3.1

KEY SYSTEM BENEFITS

• STB5660 offers a good compromise between flexibility,

performance and integration of functions which leads to

a very attractive price/performance offer

• The SAA7214 performs the descrambling,

demultiplexing and control of the STB while the

SAA7215 performs the media processing functions such

as MPEG2 audio video and graphics processing.

The communication between the two ICs as well as the

memory partitioning and management have been

designed so that a true unified memory concept can be

implemented with no performance degradation.

As in many cases a platform is a stepping stone from

which evolution and specification enhancements can be

launched. The first reference design of the platform

contains the necessary functions which demonstrate the

performance and capabilities of the system.

Enhancements in the ICs as well as for SW modules will

be released during the lifetime of the platform.

The convention which has been used is that backwards

compatibility is guaranteed within the platform (STB5000

range).

• Within the STB family of products, HW and SW

footprints will be maintained to ensure the maximum

possible reuse of resources

• Philips offering the most comprehensive portfolio of ICs

combined with our well known technological capabilities

brings the best on a complete system level. This in

combination with our local technical support centres

gives the customer a fast and secure inroad to the new

field of emerging technology.

The main objectives are:

• Firstly providing this complete system, greatly reduces

the required investments needed in scarce design

resources, and helps customers focus on building a

position and responding quickly to the market demand

2.3.2

KEY IC BENEFITS

• SAA7214 incorporates a low cost high performance

32 bits MIPS processor with 4 kbytes instruction cache

and 1-kbyte data cache. In addition a 4-kbyte

second-level cache, designed for SW optimization but

can also be used for ‘last minute’ CPU intensive

software patches is offered to software developers,

boosting application performance.

• Secondly, an advantage of the reference design

approach is that the system consisting of complex

functions realized in silicon and software can be

validated in tangible results

• Thirdly, to create a stable platform from which

customized solutions can be derived faster.

• A flexible hardware/software partitioning and

optimization for DVB TS demultiplexing has been

designed targeted to Canal+ specification. This

partitioning makes parsing of incoming stream in

hardware, in order to off-load the processor and makes

most of the processing from system memory by the

MIPS processor, which leaves to software developers

the freedom to allocate the right priority at the

application level for MPEG system data handling.

It is expected that in the coming years the market will grow

in all segments, satellite, cable and terrestrial; and that the

captive broadcasters gradually open up their system,

focusing more on the services rather then the contents of

the box. Their service role at the beginning is to create the

market by having box content, then it will change towards

the real core service activities bringing content and new

services to the home.

This changing behaviour of the service providers calls for

the semiconductor providers to offer competitive solutions,

enabling the future dreams of the service providers. This

implies that in order to plan the evolution of the Set-Top

Box functionality, one must be positioned and in control of

the whole system.

• All required DVB/MPEG2 system services are covered

by SAA7214, such as full DVB descrambling, section

filtering with 32 PIDs handled in hardware and more if

required in software, TS/PES filter for maximum

flexibility in the service handling and edition (time base

discontinuity)

1999 May 05

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STB5660 (Set-Top Box) STB concept

OM5721

• In terms of interfaces, the SAA7214 interfaces with

basic STB peripherals such as UART, smart card

interface, IEEE 1284, but also with the next generation

high speed interfaces such as IEEE 1394

• Graphics are processed internally in high resolution

RGB 4 : 4 : 4 format which provides the best quality in

graphics rendering as well as for mixing with video in

4 : 2 : 2 format

• SAA7214 is able to control with a high speed clock

(40.5 MHz) DRAMs, Flash, EEPROM and is able to

control the SAA7215 as a memory mapped device with

a maximum sustained rate of 40.5 Mbytes/s, which

enables fast graphic update in the second SDRAM

• A dedicated Data Manipulation Unit (bit block transfer

type) offers very fast block move and data manipulation

during the transfers. This can be used to perform scaling

of graphics, transfers from 4 : 2 : 0 to CLUT or RGB

formats, or fast block move in MPEG or graphics

SDRAMs.

• SAA7215 has a scalable memory architecture: 16 Mbits

for low-end and 32 Mbits for mid/high-end applications.

Furthermore, there is a full decoupling of MPEG

processing and graphics/CPU control buses and

control, which offers a high bandwidth and low latency

for CPU when accessing the graphics memory.

• SAA7215 offers flexible scaling features, including letter

box conversion that is now becoming a needed features

for broadcasters

• Two independent mixed video/graphics and video-only

signal paths are implemented and allow software

disabling of the user interface for recording on VCR

• SAA7215 features 5 independent graphics planes that

can address all the known digital TV video and graphics

requirements:

• Integrated digital video encoder with Y/C, CVBS and

RGB outputs reduce the Bill of Materials (BOM) and also

the board space, while still offering the possibility to

have access to the YUV digital bus through CCIR-656

interface.

– Background: where still pictures can be displayed in

the background

– Foreground: where broadcast graphics and the user

interface can be displayed

• SAA7215 is ready for future audio features such as

AC-3 or high fidelity LPCM audio, such as requested by

the world-wide DVD standard, but also for high-end STB

in the USA. SAA7215 processes LPCM audio data and

can interface gluelessly with an external multi-channel

audio decoder such as the SAA2505, through IEC 958

interface.

– Video: where still or moving video is displayed

– Cursor: implemented in hardware to offer fast

responses times.

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STB5660 (Set-Top Box) STB concept

OM5721

3

BLOCK DIAGRAM

handbook, full pagewidth

GENERAL

SOFTWARE

RESOURCES

APPLICATION

FEATURE DEMONSTRATION APPLICATION

LAYER

OPERATING

SYSTEM

ABSTRACTION

(OSA)

SYSTEM CONTROL

LAYER

REAL-TIME

KERNEL

(RTK)

PLATFORM

LAYER

BROAD

SUPPORT

PACKAGE

(BSP)

PARALLEL

I/O

2

I C-BUS

DRIVERS

UART

FCE047

Fig.1 Software block diagram.

8

1999 May 05

Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

4

HARDWARE

IC list

4.2.2

SAA7215

The SAA7215 is a MPEG2 source decoder which

combines audio decoding and video decoding.

Additionally to these basic MPEG functions it also provides

means for enhanced graphics, background display and/or

on-screen display as well as encoding of output video.

Due to an optimized architecture for audio and video

decoding, maximum capacity in external memory and

processing power from the external CPU is available for

graphic support.

4.1

Table 1 Description of system ICs

HARDWARE

DESCRIPTION

Channel module

SD1288MK2 Tuner

TDA8044

Satellite demodulator and decoder

Front panel board

4.3

Front-end

87C524

Microcontroller

The front-end allows reception of channels transmitted by

satellite received via a satellite dish in combination with a

Low Noise Blockdown (LNB). The Outdoor unit can be

controlled with:

Main board

SAA7214

Descrambler, demultiplexer and MIPS

core

SAA7215

Audio, video, graphics and digital

encoder

• 0FF/14 V/18 V pouring for polarisation steering

• 22 kHz tone switching control for band switching

• Digital Satellite Equipment Control (DiSEqC) V1.0.

PDI1394L11 Link and physical layer of 1394

PDI1394P11 Link and physical layer of 1394

UDA1320

TDA8004

Audio DAC

4.4

Front panel

Smart Card Interface

4.4.1

LNB INTERFACE

4.2

4.2.1

Main board

SAA7214

Master transmitter DiSEqC is provided and 14/18 V

switching this is routed through the digital board to the

front-end utility connector. The possibility to disable the

DiSEqC on the front panel, allows for the next generation

Quatro Phase Shift Key (QPSK) front-end which will have

DiSEqC.

The SAA7214 (TMIPS) is a transport MPEG2 source

system decoder it includes a MIPS R3000 microcontroller

core and several peripheral interfaces such as UARTs,

I²C-bus units, an IEEE 1394, and an IEEE 1284

(Centronics) interface.

4.4.2

IR

SAA7214 receives transport streams through a versatile

stream input interface capable of handling both

The on-board microcontroller decodes the IR commands

in RC5/6 format and relays via the serial link to the

SAA7214.

byte-parallel and bit-serial streams, in various formats,

supporting data streams up to and including 13.5 Mbytes/s

(108 Mbits/s). The stream data is first applied to an on-chip

descrambler incorporating DVB descrambling algorithms,

on the basis of 6 control word pairs stored in on-chip RAM.

4.4.3

KEYS

STANDBY, UP, DOWN, LEFT, RIGHT, OK, MENU

Demultiplexing is subsequently applied to the stream, to

separate up to 40 individual data streams.

The demultiplexer section includes clock recovery and

timebase management.

4.4.4

SCART CONTROL

Pin 8 control as per the SCART specification for 16 × 9

and 4 × 3.

Pin 16 control as per SCART specification for RGB fast

blanking (in this case used to switch between RGB and

composite).

Program Specific Information (PSI), Service Information

(SI), Conditional Access (CA) messages and private data

is selected and stored in external memory, for subsequent

off-line processing by the internal R3000 microcontroller

core.

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STB5660 (Set-Top Box) STB concept

OM5721

4.5

Memory

4.5.4

FLASH

2 Mbytes [2 × (512K × 16)]; this can be up-graded to

4 Mbytes [2 × (1M × 16)].

4.5.1

NON-VOLATILE MEMORY (NVM)

A 32-kbyte NVM is implemented with an EEPROM

connected to the I²C-bus to allow for channel data storage,

etc.

Two flash banks are needed to allow code to be run from

one bank while writing to the other.

4.5.5

VIDEO AND GRAPHICS RAM

4.5.2

DRAM

4 Mbytes SDRAM [2 × (1M × 16)] at 81 MHz.

2 Mbytes (1M × 16); 60 ns fast or hyper-page mode.

4.5.6

MEMORY OPTIONS

4.5.3

BOOT ROM

Surface mount links can select memory configuration.

256 kbytes (256 kbytes × 8) to allow for ROM boot up and

also to provide ROM emulation.

Remark: The boot chip select is selectable between Boot

ROM and Flash.

4.6

Connectors

Table 2 The main board connectors

CONNECTOR

DESCRIPTION

Optical SPDIF

SPDIF

A SPDIF signal from the SAA7215 is brought out via an optical output connector.

To allow connection of the Philips SAA2505 AC3/MPEG7.1 surround sound.

1 standard SCART, audio/video output signals only.

SCART

3 Phonos (RCAs)

SVHS

CVBS, right audio and left audio.

The Y/C output from the SAA7215 is brought out to a standard SVHS connector.

CCIR 656 connector A connector to the CCIR 656 YUV output from the SAA7215.

JTAG

A standard JTAG connector for Boundary Scan testing.

DEBUG socket

A surface mount DEBUG socket allowing connection to a Philips REDDX connector via a

conversion board to allow connection to a REDDNET or REDDROM board.

RS232

An additional RS232-C (±12 V) interface to provide a board connector for debug use.

One half of a suitable RS232 driver chip will be used for signal level conversion.

IEEE 1394

The Philips PDI1394L11 and PDI1394P11 is implemented to provide half-duplex 1394 access

from the SAA7214.

Under isolation mode the power for the physical IC will be taken from the bus via the switching

regulator. The option between isolated and non-isolated is selectable via option links.

Two 1394 connectors are available on the back panel.

IEEE 1294

Subject to Electro-Static Discharge (ESD), standard logic are implemented as buffers to

provide 1284 to a 25-way D-type female connector on the back panel.

1999 May 05

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STB5660 (Set-Top Box) STB concept

OM5721

5

SOFTWARE DESCRIPTION

Software overview

5.2

General software resources

This layer is used by all the layers. Typical parts are

Real-time operating system functionality, C-library and

debug components.

5.1

5.1.1

GENERAL SOFTWARE RESOURCES

• Real-time kernel

5.3

System Control layer

• Board support package

Part of the System Control layer provides functionalities

which are a compound of device driver functionality.

• Operating system abstraction package.

5.1.2

APPLICATION LAYER

Examples of the system control layer components are

teletext, which uses the TS/PES package a part of MSP

device driver and the AVG device driver. Also the front-end

satellite component is a functional layer component, it

uses the LNB device driver, the Satellite Tuner device

driver and the TDA8044 device driver.

• Feature demonstration application.

5.1.3

SYSTEM CONTROL LAYER

• Graphics library

• PSI processing

5.4

Platform layer

• Front panel communications

• 1394

The platform layers consists of set of platform drivers each

controlling a Set-Top Box functionality that is implemented

in hardware. Examples of a Set-Top Box functionality are

video decoding, audio decoding and section filtering. It is

possible that more than one platform driver can control a

physical hardware component (IC) if this component

provides a set of Set-Top Box functions.

• Satellite front-end component

• Teletext processing component.

5.1.4

PLATFORM LAYER

• MPEG System Processor (MSP)

• Audio/Video/Graphics device driver

• Front Panel device driver

• Flash Memory device driver

• Non-Volatile Memory device driver

• Debug UART device driver

• IEEE 1394 device driver

The interface of a platform driver consists of generic set of

functions. It is the intention not to directly specify hardware

interface functions but MPEG/DVB related functions.

In this way future generations of controlled hardware use

the same sub-set of interface functions. Some platform

drivers do not directly interface with the hardware but use

an I/O platform driver. Platform drivers are not allowed to

communicate with each other. If communicating is

required between platform drivers it is under control of a

component located in the functional layer.

• Smart Card device driver

• IEEE 1284 device driver

• LNB device driver

The I/O platform drivers provide the functions when a

device driver does not directly have access to the

hardware. Examples of I/O device drivers are an I²C-bus

device driver and an UART device driver.

• Satellite Tuner device driver

• TDA8044 device driver.

5.1.5

I/O DEVICE DRIVERS

• Parallel I/O device driver

• I²C-bus device driver

• UART device driver.

1999 May 05

12

Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

5.5

Application layer

5.5.3

TUNING MENU

This layer has been limited only to demonstrate the

possibilities that can be implemented at the application

layer.

5.5.3.1

Transponder setup

The transponder can be setup automatically or manually.

Selecting the automatic option gives the user the

possibility to sweep the band over a particular frequency

range at all symbol rates. All transponders found will be

logged and stored to NVM. The sweep can be started by

pressing the start button via the user controls.

5.5.1

TOP LEVEL MENU

Main menu options:

• Installation menu

• Tuning menu

Selecting the automatic network option will give the user

the possibility to sweep the band over a particular

frequency range at a user defined symbol rate.

The Network Information Table (NIT) from the first

transponder found will be read and the services known in

this NIT will be logged and stored to NVM.

• Feature demonstration menu.

5.5.2

INSTALLATION MENU

The installation menu is used to select the board

configuration options. The selected options are stored to

NVM.

Table 4 Program setup

Table 3 Board conﬁguration options

ITEM

OPERATION

Source The source of the transport stream can be

selected between tuner and stream server.

In Tuner mode the ability to change the

selected transponder is available.

ITEM

CONFIGURATION OPTION

LNB setup

On/off DiSEqC LNB and Single or Dual

band; note 1.

Video standard PAL or NTSC; default PAL.

Listing Shows the current transport stream and the

possible audio PIDS for the selected service.

The service can be selected and the audio

PID chosen.

SCART

Pin 16 control (RGB or composite

video signalled).

Display

Allows selection of 16 : 9 or 4 : 3 TV

screen.

Selecting the manual option provides the user with the

ability to enter additional transponder data, or to adjust

transponders found with an auto setup. To add a

transponder the correct frequency, symbol rate,

polarisation and Forward Error Correction (FEC) rate are

required.

Note

1. With non-DiSEqC LNBs the control is simply by

14/18 V switching for polarity and in the case of a Dual

band the use of 22 kHz signal (no modulation)

selecting the High Band. With DiSEqC LNBs the

control is by sending DiSEqC commands via

modulation in the 22 kHz signal. (This means DiSEqC

level 1).

1999 May 05

13

Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

5.5.4

Table 5 Screens highlighting the main features of the Philips SAA7214/SAA7215 chip-set.

SCREEN FEATURE

Audio

FEATURE DEMONSTRATION MENU

Audio routing and

Dual channel

Audio routing options; mono, stereo, LL, RR.

Dual channel options; Channel 1, Channel 2, both (1-L, 2-R).

Mute

Sound muted

Balance

Beep

Control via a text box for left/right balance

Control of the volume, frequency and duration; the beep can then be heard.

LPCM demonstration Show the possibility of decoding Linear Pulse Code Modulated (LPCM) audio samples. This

besides the decoding of normal MPEG audio although both cannot be not done at the same

time. This feature is for example used to play uploaded audio samples.

A command is given when the audio and video decoding is running. This command will start

the demonstration. The function itself will play about 1 second of LPCM audio and will

continue with normal MPEG audio and video decoding afterwards.

IEEE 1394

IEEE 1394 disable

I/O of IEEE 1394 trafﬁc can be disabled. IEEE 1394 will carry on relaying any IEEE 1394

between the two IEEE 1394 ports. Also choose between input/output of data into systems.

Smart card

A service scrambled using the default keyword will be descrambled upon insertion of a Smart

card which contains authorization to use the default keyword.

PC download

When selected, the MPEG board will wait for the download of a bit map picture, via the

IEEE 1284 port. Upon completion of the download the picture will be displayed, the progress

of the download is also displayed.

MIPS performance

MIPS Performance

Block copy

This will show the MIPS performance in drystones under the current setup.

To show a fast block copy, a bit map picture is copied across the screen. This function is also

supported in hardware but handling this in software makes the function more ﬂexible.

The actual copying is executed in the SAA7215 hardware by the DMU. Software however has

to upload the picture, initialize and start the DMU with correct parameters. The cost however

compared to the hardware tiling is processor and memory use.

Graphics

Text and Drawings

A combination of different fonts and line drawings to demonstrate colour depth and resolution

capabilities.

Fast transfer

Planes demo

Fast transfer feature; via IEEE 1284.

Demonstration of the different graphics layers, by displaying quarter screen video over a

MPEG I frame background with superimposed text and cursor.

Fade

Combination of video and graphic layers showing fading in and out of the graphics layer.

One smaller picture is displayed multiple times in a user selectable rectangle.

Tiling

Hard-edge wiping

Two pictures in one plane, overlapping each other where the user can move and select the

pictures

Soft-edge wiping

1999 May 05

Two user selectable and movable pictures in two planes, with transparency in the pictures.

14

Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

SCREEN

FEATURE

Anti-ﬂickering

The anti-ﬂickering demonstration highlights the functions available in the SAA7215 to reduce

the line ﬂickering in graphics regions. During this demonstration, 2 graphics regions are

displayed. One with anti-ﬂickering and one without. The contents of the bit map in the regions

is one that shows ﬂickering without anti-ﬂicker measures active. Video and audio decoding are

still active and visible during the demonstration.

Grab frame store to

OSD and scale ¹⁄₄

A picture of the running video is grabbed and displayed ¹⁄₄of its original size as a 16-bit, bit

map on a graphics plane. The picture data of an I or P picture is copied from a frame store to

continuously location SDRAM2 memory. During the copy the format of the data is converted from 4 : 2 : 0 format to

4 : 2 : 2 and converted into the graphics memory bit map format. Then the picture is displayed

on the screen.

The demonstration runs continuously. It displays the running video while a graphics region ¹⁄₄

of the screen size is in the top left corner. This graphics region is showing the I- and P-pictures

of the running video.

Scale ¹⁄₉of 16 bit per This demonstration shows a 16 bit /pixel bit map in an OSD region on the screen. This picture

pixel graphics

location

will be scaled to a factor ¹⁄₄and ¹⁄₉of the original size and displayed on the screen, after the

original is removed. The scaling is done by using a software routine that executes a DMU

program. During the demonstration, audio and video is playing.

Menu

During all the demonstrations, graphics regions with menu bars and buttons are visible for

control of the demonstration.

Scaling

Cut-out

Display of 16 : 9 video on a 4 : 3 display by cutting out 4 : 3 centres and panning/scanning.

This demonstration shows the pan/scan control via the left/right cursor keys. This function

would usually be under control from data in the transport stream.

Letter-box

Display of 16 : 9 video on a 4 : 3 display using letter-boxing.

Continuous

horizontal, vertical

steps

Allows a window to be selected using the cursor; the video will then be resized to ﬁt the

selected window.

Video control

Teletext

Scan, freeze, play, stop

Teletext

Switch on and off of the VBI insertion by using a graphics region in VBI lines.

User enabled event logging provided via the RS232 debug socket.

Debug

Event logging

1999 May 05

15

Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

6

DEVELOPMENT ENVIRONMENT

6.2

How to get started

This chapter describes how you can develop your own

STB5660 application, what environment you need. What

hardware and software interface the system provides.

It answers the question what you need to start developing

your application. In addition it will tell you what you will

receive with the system that gets you on your way and

shorten development time and reduce the costs involved.

The first day you receive the system you can hook up a

satellite dish or transport stream (DiSEqC or not), a TV,

connect power to the system and it will start with the FDS

program. This demo gives you a menu driven interface to

the system. You can test and experiment with all main

features of the system. See how fast the On-Screen

Display functions, try out the IEEE 1394 interface to a

similar board, look at window tests, try out teletext, etc.

This will give you an understanding of the system and its

possibilities.

6.1

Summary of the STB5660 kit

When you receive the STB5660 development system it will

offer you a complete Set-Top Box system with all needed

documentation for development. This will give you a ‘plug

and play’ solution to test and develop a system based on

this platform.

6.3

Hardware interface with the STB5660

Besides the dish and the TV (SCART, SVHS, CCIR 656

YUV) there is an interface to IEEE 1394, SPDIF

(multi-channel audio decoder, to a PC via RS232 and

IEEE 1284 (Centronics), a debug socket (ROM emulator,

I/O), JTAG connector (boundary scan testing), smart-card

unit and a remote control.

6.1.1

THE HARDWARE

This consists off a satellite front-end board, a front panel

with the display and IR-receiver, a main board, smart card

unit, the remote control and all cables needed to make the

necessary connections. On the main board you will find a

programmed EPROM and Flash memory.

To use a ROM emulator there is an I/O connector on the

main PCB where an extension board fits on the debug

connector. This extension gives you access to two

footprints for 1-Mbyte ROMs.

6.1.2

THE SOFTWARE

6.4

Software interface with the STB5660

You will receive not only the binary executable, but also all

source codes in C, header files and documentation files.

The software will include the complete Application

Programmers Interface (API) for all components on the

board, except for IEEE 1394, which will be a subset of the

standard. This API will offer a developers logical services

like audio, video, graphics, descrambling, etc. Together

with this you will get the Feature Demonstration

In the following way you can interface to the system to

develop and debug your own application. Connect a PC

(or other development system) with a ROM emulator to

extension board on the debug connector, compile the

supplied source code and load the executable in the ROM

emulator. Connect the RS232 debug port to the PC and

run a terminal program, this will give you a debug screen.

Application (FDS). This is an application that will show you

the key features of the system.

If you don’t have a ROM emulator you can use the parallel

port (IEEE 1284) of the Set-Top Box. There is a loader

program embedded in the EPROM of the system which

allows development without ROM emulator.

6.1.3

DOCUMENTATION

Here you will find the user manual and programmers

reference for all major parts of the system like the

SAA7215 (AVGD chip), the SAA7214 (MPEG2

descrambler demultiplexer chip), and the satellite

front-end module (OM5718).

The maximum possible memory configuration consists of

a boot ROM (256 kbytes) with the loader program,

2 Mbytes fast DRAM as scratch memory, 32 kbytes NVM

for channel data storage, 4 Mbytes Flash memory to store

the program and 4 Mbytes SDRAM video memory.

The boot Chip Select can be switched between boot ROM

and Flash memory. Of course a smaller configuration is

possible, just leave the memory footprints open.

6.1.4

TEST REPORTS

These are included to prove the system maturity. You will

see the reports of the API tests and the reports concerning

the extensive In-System-Test. The latter is done to prove

the chip-set in a complete system environment, a

customer like set-up, customer use based on our

experience with previous end-customers.

1999 May 05

16

Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

6.5

Running ‘Hello world’

We have supplied a small program which is called ‘Hello

world’ to help you start developing you own software.

How can we get the supplied ‘Hello world’ application

running if we work with the a PC and a ROM emulator?

Connect the emulator to the STB5660 board via the

extension board. Then connect the PC RS232 port to the

STB5660 RS232 port. The program is running pSOS as

the read-time software. You need the pSOS libraries to

build the software. Compile the platform layer (drivers), the

Board Support Package and the ‘Hello world’ program.

Load the executable in the ROM emulator and start the

program. You will see the ‘Hello world’ text on the debug

window. You are now ready to start writing your own

application, with help from the programmers reference

documentation and user guide.

1999 May 05

17

Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

7

CONTENTS LIST FOR STB5660

Table 6 Delivery list for the STB5660 system

ITEM

DESCRIPTION

1. Hardware

2. Software

Front panel

OM5718

STB5660 main board

Front panel driver

Satellite Software driver

SAA7214 driver

SAA7215 driver

TXT driver

Feature demonstration application

Objective system speciﬁcation long

SAA7214 IC speciﬁcation

3. Documentation

SAA7214 Driver Software Programmer’s Reference

SAA7214 User manual

SAA7215 IC speciﬁcation without registers medium

SAA7215 Driver Software Programmer’s Reference

SAA7215 User manual

TDA8044 speciﬁcation

87C524 speciﬁcation

PDI1394L11 speciﬁcation

PDI1394P11 speciﬁcation

UDA1320 speciﬁcation

TDA8004 speciﬁcation

TDA8060 speciﬁcation

TSA5512 speciﬁcation

Hardware Deﬁnition Document of main board

STB5660 System Validation Report

User Guide of Feature demonstration application

Schematics OM5721, Front panel

Gerber ﬁles

Check list

4. Cables

RS232 cable, 1394 cable

SCART, power cable

1999 May 05

18

Philips Semiconductors

Product speciﬁcation

STB5660 (Set-Top Box) STB concept

OM5721

8

DEFINITIONS

Data sheet status

Objective speciﬁcation

Preliminary speciﬁcation

Product speciﬁcation

This data sheet contains target or goal speciﬁcations for product development.

This data sheet contains preliminary data; supplementary data may be published later.

This data sheet contains ﬁnal product speciﬁcations.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or

more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation

of the device at these or at any other conditions above those given in the Characteristics sections of the speciﬁcation

is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the speciﬁcation.

9

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these

products can reasonably be expected to result in personal injury. Philips customers using or selling these products for

use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such

improper use or sale.

10 PURCHASE OF PHILIPS I²C COMPONENTS

Purchase of Philips I²C components conveys a license under the Philips’ I²C patent to use the

components in the I²C system provided the system conforms to the I²C specification defined by

Philips. This specification can be ordered using the code 9398 393 40011.

1999 May 05

19

Philips Semiconductors – a worldwide company

Argentina: see South America

Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,

Tel. +31 40 27 82785, Fax. +31 40 27 88399

Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,

Tel. +61 2 9805 4455, Fax. +61 2 9805 4466

New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. +64 9 849 4160, Fax. +64 9 849 7811

Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213,

Tel. +43 1 60 101 1248, Fax. +43 1 60 101 1210

Norway: Box 1, Manglerud 0612, OSLO,

Tel. +47 22 74 8000, Fax. +47 22 74 8341

Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,

220050 MINSK, Tel. +375 172 20 0733, Fax. +375 172 20 0773

Pakistan: see Singapore

Belgium: see The Netherlands

Brazil: see South America

Philippines: Philips Semiconductors Philippines Inc.,

106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,

Metro MANILA, Tel. +63 2 816 6380, Fax. +63 2 817 3474

Bulgaria: Philips Bulgaria Ltd., Energoproject, 15th floor,

51 James Bourchier Blvd., 1407 SOFIA,

Tel. +359 2 68 9211, Fax. +359 2 68 9102

Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA,

Tel. +48 22 612 2831, Fax. +48 22 612 2327

Portugal: see Spain

Romania: see Italy

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,

Tel. +1 800 234 7381, Fax. +1 800 943 0087

China/Hong Kong: 501 Hong Kong Industrial Technology Centre,

72 Tat Chee Avenue, Kowloon Tong, HONG KONG,

Tel. +852 2319 7888, Fax. +852 2319 7700

Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,

Tel. +7 095 755 6918, Fax. +7 095 755 6919

Singapore: Lorong 1, Toa Payoh, SINGAPORE 319762,

Colombia: see South America

Czech Republic: see Austria

Tel. +65 350 2538, Fax. +65 251 6500

Slovakia: see Austria

Slovenia: see Italy

Denmark: Sydhavnsgade 23, 1780 COPENHAGEN V,

Tel. +45 33 29 3333, Fax. +45 33 29 3905

South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,

2092 JOHANNESBURG, P.O. Box 58088 Newville 2114,

Tel. +27 11 471 5401, Fax. +27 11 471 5398

Finland: Sinikalliontie 3, FIN-02630 ESPOO,

Tel. +358 9 615 800, Fax. +358 9 6158 0920

France: 51 Rue Carnot, BP317, 92156 SURESNES Cedex,

Tel. +33 1 4099 6161, Fax. +33 1 4099 6427

South America: Al. Vicente Pinzon, 173, 6th floor,

04547-130 SÃO PAULO, SP, Brazil,

Tel. +55 11 821 2333, Fax. +55 11 821 2382

Germany: Hammerbrookstraße 69, D-20097 HAMBURG,

Tel. +49 40 2353 60, Fax. +49 40 2353 6300

Spain: Balmes 22, 08007 BARCELONA,

Tel. +34 93 301 6312, Fax. +34 93 301 4107

Hungary: see Austria

Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,

Tel. +46 8 5985 2000, Fax. +46 8 5985 2745

India: Philips INDIA Ltd, Band Box Building, 2nd floor,

254-D, Dr. Annie Besant Road, Worli, MUMBAI 400 025,

Tel. +91 22 493 8541, Fax. +91 22 493 0966

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,

Tel. +41 1 488 2741 Fax. +41 1 488 3263

Indonesia: PT Philips Development Corporation, Semiconductors Division,

Gedung Philips, Jl. Buncit Raya Kav.99-100, JAKARTA 12510,

Tel. +62 21 794 0040 ext. 2501, Fax. +62 21 794 0080

Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1,

TAIPEI, Taiwan Tel. +886 2 2134 2886, Fax. +886 2 2134 2874

Ireland: Newstead, Clonskeagh, DUBLIN 14,

Tel. +353 1 7640 000, Fax. +353 1 7640 200

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,

209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,

Tel. +66 2 745 4090, Fax. +66 2 398 0793

Israel: RAPAC Electronics, 7 Kehilat Saloniki St, PO Box 18053,

TEL AVIV 61180, Tel. +972 3 645 0444, Fax. +972 3 649 1007

Turkey: Yukari Dudullu, Org. San. Blg., 2.Cad. Nr. 28 81260 Umraniye,

ISTANBUL, Tel. +90 216 522 1500, Fax. +90 216 522 1813

Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,

20124 MILANO, Tel. +39 02 67 52 2531, Fax. +39 02 67 52 2557

Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,

252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461

Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku,

TOKYO 108-8507, Tel. +81 3 3740 5130, Fax. +81 3 3740 5077

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,

MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421

Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,

Tel. +82 2 709 1412, Fax. +82 2 709 1415

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,

Tel. +1 800 234 7381, Fax. +1 800 943 0087

Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,

Tel. +60 3 750 5214, Fax. +60 3 757 4880

Uruguay: see South America

Vietnam: see Singapore

Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,

Tel. +9-5 800 234 7381, Fax +9-5 800 943 0087

Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,

Middle East: see Italy

Tel. +381 11 62 5344, Fax.+381 11 63 5777

For all other countries apply to: Philips Semiconductors,

Internet: http://www.semiconductors.philips.com

International Marketing & Sales Communications, Building BE-p, P.O. Box 218,

5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825

SCA64

All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed

without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license

under patent- or other industrial or intellectual property rights.

Printed in The Netherlands

545004/750/02/pp20

Date of release: 1999 May 05

Document order number: 9397 750 04764


型号：	OM5721
厂家：	NXP
描述：	STB5660 Set-Top Box STB concept STB5660机顶盒STB概念
文件：	总20页 (文件大小：104K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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