RSC4128 datasheet(6/49 Pages) ETC

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RSC-4128

Data Sheet

P/N 80-0206-J

RSC-4128 Architecture

The RSC-4128 is a highly integrated speech and analog I/O mixed signal processor that combines:

8-bit microcontroller with enhanced instructions and interrupt control, superior register architecture, independent

Digital Filter engine and “L1” Vector Math Accelerator

On-chip ROM and RAM (4.8 Kbytes), and the ability to address off-chip RAM, ROM, EPROM or Flash.

Input microphone preamp and 16 bit Analog-to-Digital Converter (ADC) for speech and audio/analog input

10 bit Digital-to-Analog Converter (DAC), and 10 bit Pulse Width Modulator (PWM) to directly drive a speaker or

other analog device

Low power Audio Wakeup from power down mode, when a selected audio event, such as clap or whistle, occurs

The RSC-4128 has 20-bit address

and 8-bit data busses for interfacing

with external memory. It includes an

-XM input pin capable of enabling or

disabling the internal ROM.

NOTE: Neither the -XM input pin nor

the extended memory busses are

available

64-lead

LQFP

packaged versions of the RSC-4128

with internal ROM. These are

available on the die and 100 LQFP

versions.

Three bi-directional ports provide 24

configurable, general-purpose I/O

pins to communicate with or control

external devices with a variety of

source and sink currents. Up to 4 of

these

I/O

may

used

programmable Analog Comparator

inputs. 16 may be used as I/O

wakeup.

The

RSC-4128

has

high

frequency (14.32 MHz) clock as well

as a low frequency (32,768 Hz)

clock. 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. The RSC-

4128 also supports programmable

wait states to allow the use of

slower memory.

OSC1 is a very low-cost 3.58 MHz

crystal oscillator which is used by a

4X PLL to generate the 14.32MHz

clock. The OSC2 oscillator provides the options of using an external crystal or its own internal RC devices (no

external components required for the internal RC mode).

There are three programmable, general-purpose 8-bit counters / timers – Timers 1 and 3 are derived from OSC1,

and Timer2 from OSC2. There is also a Watchdog timer that may be used to exit an undesired condition in

program flow, and Multi-tasking timer to allow chip operations to share resources in parallel.

RSC-4128 Internal Block Diagram

RSC4128 Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers

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