RSC-164I [ETC]
General Purpose Microcontroller Featuring Speech Recognition, Speaker Verification, and Speech Synthesis.; 通用微控制器配备语音识别，说话人确认和语音合成。
| 型号： | RSC-164I |
| 厂家： | 
ETC |
| 描述： | General Purpose Microcontroller Featuring Speech Recognition, Speaker Verification, and Speech Synthesis. |
| 文件： | 总5页 (文件大小：63K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RSC-164i
Recognition · Synthesis · Control
General Purpose Microcontroller Featuring Speech Recognition,
Speaker Verification, and Speech Synthesis.
GENERAL DESCRIPTION
FEATURES
The RSC-164i, from the Interactive Speech™ family of
products, is a low-cost microcontroller designed for use in
consumer electronics. The RSC-164i combines an 8-bit
microcontroller with high-quality speaker-independent
and speaker-dependent speech recognition, speaker
verification, and speech synthesis. Products can use one
or all of the RSC-164i features in a single application.
Full Range of Speech Capabilities
· Speaker-independent speech recognition
· Speaker-dependent speech recognition
· High quality speech synthesis and sound effects
· Speaker verification
Integrated Single-Chip Solution
The RSC-164i employs a sophisticated neural network
that learns to classify sound data. On-chip speech
recognition algorithms reach an accuracy of greater than
96% for speaker-independent recognition and greater than
99% for speaker-dependent recognition. Sensory’s neural
network approach (patent pending) eliminates the need for
expensive signal processing or extensive RAM storage.
· 4 MIPS 8-bit microcontroller
· On-chip A/D and D/A converters, digital filtering
· 32kHz clock for time keeping
· Internal 64kbytes ROM; 384 bytes RAM
· 12 general purpose I/O lines
· On-chip output PWM for direct speaker drive
The highly-integrated nature of the chip reduces external
parts count. A complete system may be built with few
additional parts other than a battery, speaker, microphone,
and audio input support circuitry. The RSC-164i is
similar to the RSC-164, but does not support a parallel
memory interface. All program, synthesis, recognition,
and verification code must fit in the on-chip ROM.
Low Power Requirements
· 3.5-5.0V supply
· ~10mA operating
RSC-164i Block Diagram
Oscillator
External
Analog Input
Preamp
PWM
DAC
RAM
ROM
Microphone
ADC
Speaker
Microcontroller
Digital Logic
AGC
RSC-164i
General
Purpose I/O
From the Interactive Speech™ Line of Products
RSC-164i
DATA SHEET
RSC-164i OVERVIEW
POWER
The RSC-164i features
a
high-performance 8-bit
The typical operating current is 10 mA operating at
14.32 MHz.
microcontroller with on-chip A/D, D/A, RAM and ROM.
The RSC-164i is designed to bring a high degree of
integration and versatility into low-cost, power-sensitive
consumer applications.
RSC-164i Architecture Diagram
AIN0
ADC
Various functional units have been integrated onto the
CPU core in order to reduce total system cost and
increase system reliability without degrading system
performance. The RSC-164i delivers 4 MIPS of integer
performance at 14.32 MHz providing maximum
performance at minimum cost.
MUX
AIN1
SH
ADC
DACOUT
DAC
ANALOG
CONTROL
REGISTER SPACE
384 bytes
BUFOUT
/PWM
The CPU core embedded in the RSC-164i is an 8-bit,
variable-length-instruction, microcontroller. The instruc-
tion set is loosely based on Intel’s 8051Ô , having a
variety of addressing mode mov instructions. But the
RSC-164i processor avoids the limitations of dedicated
A, B, and DPTR registers by having completely
symmetrical source and destinations for all instructions.
The 384 bytes of internal RAM are organized as a
Register Space.
PULSE WIDTH
MODULATOR
STACK SPACE
8 bytes
XI1, XO1
OSC1
CPU
TIMER1
TIMER2
INTERNAL ROM
32K x 8
HIGH
LOW
XI2, XO2
32K x 8
OSC2
-RESET
-TE1/
TIMING AND CONTROL
PWM
P0.0-P0.7
SPEECH RECOGNITION
BREAK POINT
REGISTER
The RSC-164i uses a neural network to perform speaker-
independent or speaker-dependent speech recognition.
Speaker-dependent recognition requires external serial
memory to store speech recognition templates. Speaker-
independent recognition requires on-chip ROM to store
the words to be recognized. The RSC-164i has several
additional speech recognition features as described
below.
P1.0-P1.3
RSC-164i ARCHITECTURE
The RSC-164i is a highly integrated device that
combines:
Continuous listening allows the chip to continuously
listen for a specific word. With this feature a product can
be used in a normal environment and only “activates”
when a specific word, preceded by quiet, is spoken.
·
·
·
8-bit microcontroller
On-chip ROM (64 kbytes) and RAM (384 bytes)
A/D converter and D/A converter
SPEECH SYNTHESIS
Two bi-directional ports provide 12 general purpose I/O
pins to communicate with external devices. The RSC-
164i has a high frequency (14.32 MHz) oscillator as well
as a low frequency (32,768 Hz) oscillator suitable for
timekeeping applications. The processor clock can be
selected from either source, with a selectable divider
value. The device performs speech recognition when
running at 14.32 MHz. There are two programmable 8-
bit counters / timers, one derived from each oscillator.
The RSC-164i provides high-quality speech synthesis by
using a hybrid of a time-domain compression scheme
that improves on conventional ADPCM and a customized
reuse of sounds. Speech synthesis uses on-chip ROM to
store audio sounds for synthesis. The RSC-164i supports
approximately 25 seconds of speech.
SPEAKER VERIFICATION
The RSC-164i can perform text-dependent speaker
verification. After a speaker trains the chip on a specific
word, the chip will be able to identify whether that word
is spoken by the original speaker.
From the Interactive Speech™ Line of Products
DATA SHEET
RSC-164i
A microphone with an external preamp converts sound
into an audio signal that is fed to the RSC-164i. The gain
of the external preamp may be controlled by the RSC-
164i by using two of the I/O lines. The RSC-164i uses an
ADC (Analog-to-Digital Converter) to convert incoming
analog speech signals into digital data. The output audio
signal of the RSC-164i is derived from a DAC (Digital-
to-Analog Converter) or PWM (Pulse Width Modulator).
14.32 MHz (3.5V-5.0V)
Pins XI2 and XO2
32768 Hz (3.5V-5.0V)
Oscillator #2
Oscillator #1 works with an external crystal, a ceramic
resonator or LC. Use of Oscillator #2 requires a crystal
for precision timing.
CLOCK
The RSC-164i uses a fully static core – the processor can
be stopped (by removing the clock source) and restarted
without causing a reset or losing contents of internal
registers. Static operation is functional from DC to 14.32
MHz.
USING THE RSC-164i
Creating applications using the RSC-164i requires the
development of electronic circuitry, software code, and
speech/music data files. Software code for the RSC-164i
can be developed by Sensory or by external programmers
using the RSC Development Kit. For more information
about development tools and services, please contact
Sensory. A typical product will require about $0.80 -
$1.50 (in high volume) of additional components, in
addition to the RSC-164i.
Typically the processor clock runs from a 14.32 MHz
crystal with no divisor and one wait state. This creates
internal RAM cycles of 70 nsec duration and internal
ROM of 140 nsec duration.
TIMERS/COUNTERS
The two independent oscillators of the RSC-164i provide
counts to two internal timers. Each of the two timers
consists of an 8-bit reload value register and an 8-bit up-
counter. The reload register is readable and writeable by
the processor.
RSC-164i INSTRUCTION SET
The instruction set for the RSC-164i has 52 instructions
comprising 8 move, 7 rotate, 11 branch, 11 register
arithmetic, 9 immediate arithmetic, and 6 miscellaneous
instructions. All instructions are 3 bytes or fewer, and no
instruction requires more than 8 clock cycles to execute.
INTERRUPTS
GENERAL PURPOSE I/O
The RSC-164i allows for five interrupt sources, as
selected by software. Each has its own mask bit and
request bit in the IMR and IRQ registers respectively.
The following events can generate interrupts:
The RSC-164i has 12 general purpose I/O pins (P0.0-
P0.7, P1.0-P1.3). Each pin can be programmed as an
input with weak pull-up (~400kW equivalent device);
input with strong pull-up (~10kW equivalent device);
input without pull-up, or as an output. This is
accomplished by having 24 bits of configuration registers
for the I/O pins (Port Control Register A and Port
Control Register B for ports 0 and 1).
·
·
·
·
·
Positive edge on Port 0, bit 0
Overflow of Timer 1
Overflow of Timer 2
Sensory reserved functions
Completion of PWM sample period
EXTERNAL MEMORY
ANALOG OUTPUT
The RSC-164i can connect serially through two I/O lines
to a serial EEPROM for applications with low data
storage and low access speed requirements. Speaker-
dependent and speaker verification can therefore be
performed on the RSC-164i with such external memory.
The RSC-164i offers two separate options for analog
output. The DAC (Digital to Analog Converter) output
provides a general purpose 10-bit analog output that may
be used for speech output (with the inclusion of an audio
amplifier), or other purposes requiring an analog
waveform. For speech applications that require driving a
small speaker, the PWM (Pulse-Width Modulator) output
can be used instead of the DAC output. The PWM
output can directly drive a 32 ohm speaker.
OSCILLATORS
Two independent oscillators in the RSC-164i provide a
high-frequency clock and a 32kHz time-keeping clock.
The oscillator characteristics are as follows:
Oscillator #1:
Pins XI1, XO1
From the Interactive Speech™ Line of Products
RSC-164i
DATA SHEET
ABSOLUTE MAXIMUM RATINGS
Any pin to GND
-0.1V to +7.5V
WARNING: Stressing the RSC-164i beyond the
Operating temperature (TO)
Soldering temperature
Power dissipation
0°C to +70°C
260°C for 10 sec
TBD
0°C to +70°C;
VDD=3.5-5.0V;
VSS=0V
“Absolute Maximum Ratings” may cause permanent
damage. These are stress ratings only. Operation
beyond the “Operating Conditions” is not
recommended and extended exposure beyond the
“Operating Conditions” may affect device
reliability.
Operating Conditions
THE INTERACTIVE SPEECH™ PRODUCT LINE
The Interactive Speech line of ICs was developed to “bring life to products” through advanced speech and audio technology.
These chips allow products to think, talk, hear and play music. The Interactive Speech chips were designed for consumer
telephony products and cost-sensitive consumer electronic applications such as home electronics, personal security, and
personal communication. The product line includes general purpose microcontrollers (RSC-164, RSC-164i, RSC-132i) and
application specific standard speech ASSPs (Voice Password™ and Voice Direct™).
RSC-164
The RSC-164 is a low-cost 8-bit microcontroller designed for use in consumer electronics. It is a
fully integrated microcontroller and includes A/D, D/A, ROM, and RAM circuitry on chip. The
RSC-164 can perform a full range of speech/audio functions including speech recognition,
speaker verification, speech and music synthesis, and voice record/playback.
RSC-132i
The RSC-132i, the lowest cost member of the RSC series, is a speech enabled microcontroller designed specifically for the toy
industry. The RSC-132i can support various combinations of speech technologies. The RSC-132i combines an 8-bit
microcontroller with high quality speaker-independent and speaker-dependent speech recognition, speech synthesis, and
speaker verification. This chips has 32 kBytes of ROM and limited I/O pins
Voice Password™ ASSP
The Voice Passwordä ASSP provides consumer products with low cost biometric security. The chip lets products “lock out”
unauthorized access by verifying key words and/or voices. Using text dependent speaker verification technology, Voice
Password can secure products at a variety of security thresholds for many different applications.
Voice Direct™ ASSP
The Voice Directä ASSP provides cost-sensitive products with speaker-dependent speech recognition, speech synthesis and
DTMF tone generation. This easy-to-use, pin-configurable chip requires no custom programming and can recognize up to 60
trained words. The Voice Directä ASSP is most ideal for consumer telephony products which feature voice dialing.
IMPORTANT NOTICES
Sensory reserves the right to make changes to or to discontinue any product or service identified in this publication at any time without notice in order to improve design and supply the best
possible product. Sensory does not assume responsibility for use of any circuitry other than circuitry entirely embodied in a Sensory product. Information contained herein is provided
gratuitously and without liability to any user. Reasonable efforts have been made to verify the accuracy of this information but no guarantee whatsoever is given as to the accuracy or as to its
applicability to particular uses.
Applications described in this data sheet are for illustrative purposes only, and Sensory makes no warranties or representations that the RSC series of products will be suitable for such
applications. In every instance, it must be the responsibility of the user to determine the suitability of the products for each application. Sensory products are not authorized for use as critical
components in life support devices or systems.
Sensory conveys no license or title, either expressed or implied, under any patent, copyright, or mask work right to the RSC series of products, and Sensory makes balance between
recognition and synthesis no warranties or representations that the RSC series of products are free from patent, copyright, or mask work right infringement, unless otherwise specified.
© 1996 SENSORY, INC.
ALL RIGHTS RESERVED
P/N 80-0024-3
5 2 1 East Weddell Drive
Sunnyvale, CA 94089
TEL: (408) 744-9000
FAX: (408) 744-1299
Sensory is registered by the U.S. Patent and Trademark Office.
All other trademarks or registered trademarks are the property
of their respective owners.
From the Interactive Speech™ Line of Products
DATA SHEET
RSC-164i
Nothing contained herein shall be construed as a recommendation to use any product in violation of existing patents or other rights of third parties. The sale of any Sensory product is subject
to all Sensory Terms and Conditions of Sales and Sales Policies.
From the Interactive Speech™ Line of Products
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