C8279 [ETC]
Programmable Keyboard Display Interface Megafunction; 可编程键盘显示接口宏功能
| 型号： | C8279 |
| 厂家： | 
ETC |
| 描述： | Programmable Keyboard Display Interface Megafunction |
| 文件： | 总4页 (文件大小：221K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
C8279
Programmable
Keyboard Display Interface
Megafunction
General Description
The C8279 is a programmable keyboard and display interface designed for use with microprocessors. The
keyboard portion can provide a scanned interface to a 64-contact key matrix. The display portion provides a
scanned display interface for LED, incandescent and other display technologies.
Features
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Simultaneous Keyboard Display Operation
Scanned Keyboard Mode
Scanned Sensor Mode
Strobed Input Entry Mode
8-Character Keyboard FIFO
2-Key Lockout or N-key Rollover with Contact Debounce
Dual 8- or 16-Numeric Display
Single 16-Character Display
Right or Left Entry 16-Byte Display RAM
Mode Programmable from CPU
Interrupt Scan Timing
Interrupt Output on Key Entry
Functionality based on the Intel 8279
CAST, Inc.
March 2004
Page 1
C8279 Megafunction Datasheet
Symbol
CLK
RESET
A0
CSN
WRN
RDN
RL[7:0]
SHIFT
CNTLSTB
DB_IN[7:0]
DB_OUT[7:0]
SL[3:0]
IRQ
DBN
OUTA[3:0]
OUTB[3:0]
C8279
Pin Description
Name
CLK
RESET
CSN
A0
RDN
Type Polarity Description
In
In
In
In
In
In
In
In
In
In
Rising
High
Low
-
Low
Low
-
-
Clock
Reset
Chip Select
Buffer Address
Input/Output Read
Input/Output Write
Return Lines
Shift Input Status
Control/Strobed Input Mode
Data Bus (input side)
Data Bus (output side)
Tri-State signal for DB_OUT
Interrupt Request
Scan Lines
WRN
RL[7:0]
SHIFT
CNTSTB
DB_IN[7:0]
DB_OUT[7:0] Out
PDBTRI
IRQ
SL[3:0]
OUTA[3:0]
OUTB[3:0]
BDN
-
-
-
Out
Out
Out
Out
Out
Out
Low
-
-
-
-
Outputs A for 16x4 display refresh registers
Outputs B for 16x4 display refresh registers
Blank Display
Low
CAST, Inc.
Page 2
C8279 Megafunction Datasheet
Applications
Point-of-contact Kiosk
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Medical instrumentation
Test & Measurement Instrumentation
Industrial Equipment
Avionics
Gaming & Amusement Machines
Block Diagram
CLK RESET DB_IN[7:0] DB_OUT[7:0]
RDN WRN CSN A0
I/O Control
IRQ
FIFO/SENSOR
RAM
Data
Buffers
Status
Internal Data Bus
Display
Address
Register
8 x 8
FIFO/SENSOR
RAM
Keyboard
Debounce
and
Control and
16 x 8
Display
RAM
Timing Registers
Control
Timing
and
Display
Control
Scan Counter
SL[3:0]
Return
SHIFT
Registers
BDN
OUTA[3:0]
OUTB[3:0]
RL[7:0]
CNTLSTB
Device Utilization & Performance
Supported
Family
Device
Tested
Utilization
Performance
Fmax
LEs
Memory
Memory bits
Cyclone
Stratix
Stratix-II
EP1C20-6
EP1S20-5
EP2S60-3
1,499
1,499
1,182
0
0
0
0
0
0
101 MHz
105 MHz
119 MHz
CAST, Inc.
Page 3
C8279 Megafunction Datasheet
Deliverables
Encrypted Netlist License
Post synthesis EDIF netlist
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Assignment & Configuration
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Symbol & Include files
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Testbench
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Vectors for testing the functionality of the megafunction
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Place & Route Scripts
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Documentation
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VHDL Source License
VHDL RTL source code
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Testbenches
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Vectors for testing functionality
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Expected results
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Synthesis scripts
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Simulation scripts
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Documentation
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Contact Information
CAST, Inc.
11 Stonewall Court
Woodcliff Lake, New Jersey 07677 USA
Phone: +1 201-391-8300
Fax:
+1 201-391-8694
E-Mail: info@cast-inc.com
URL:
www.cast-inc.com
Copyright © CAST, Inc. 2004, All Rights Reserved. Contents subject to change without notice.
CAST, Inc.
Page 4
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