RSC-164I Sensory, RSC-164I Datasheet

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RSC-164I

Manufacturer Part Number
RSC-164I
Description
General Purpose Microcontroller Featuring Speech Recognition
Manufacturer
Sensory
Datasheet
GENERAL DESCRIPTION
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.
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.
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.
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.
RSC-164i Block Diagram
Microphone
General Purpose Microcontroller Featuring Speech Recognition,
External
Preamp
Speaker Verification, and Speech Synthesis.
From the Interactive Speech™ Line of Products
Analog Input
Digital Logic
The RSC-164i is
ADC
AGC
Recognition Synthesis Control
Microcontroller
Purpose I/O
General
Oscillator
FEATURES
Full Range of Speech Capabilities
Integrated Single-Chip Solution
Low Power Requirements
Speaker-independent speech recognition
Speaker-dependent speech recognition
High quality speech synthesis and sound effects
Speaker verification
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
3.5-5.0V supply
~10mA operating
ROM
RAM
DAC
RSC-164i
PWM
RSC-164i
Speaker

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RSC-164I Summary of contents

Page 1

... Products can use one or all of the RSC-164i features in a single application. 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’ ...

Page 2

... RSC-164i RSC-164i OVERVIEW The RSC-164i features a high-performance 8-bit 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. 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 ...

Page 3

... DATA SHEET 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) ...

Page 4

... 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™). ...

Page 5

... DATA SHEET 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 RSC-164i ...

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