Description

The CXP88732/88740/88748 is a CMOS 8-bit

microcomputer which consists of A/D converter,

serial interface, timer/counter, time base timer, high

precision timing pattern generation circuits, PWM

output, VISS/ VASS circuit, 32kHz timer/counter,

remote control receiving circuit, VSYNC separator

and the measurement circuit which measure signals

of capstan FG amplifier and drum FG/PG amplifier

and

other

servo

systems,

as

well

as

basic

configurations like 8-bit CPU, ROM, RAM and I/O

port. They are integrated into a single chip.

Also, CXP88732/88740/88748 provides sleep/stop

function which enables to lower power consumption.

Features

• A wide instruction set (213 instructions) which cover various types of data

— 16-bit arithmetic/multiplication and division/boolean bit operation instructions

• Minimum instruction cycle

250ns at 16MHz operation

122µs at 32kHz operation

• Incorporated ROM capacity

32K bytes (CXP88732)

40K bytes (CXP88740)

48K bytes (CXP88748)

• Incorporated RAM capacity

1344 bytes (including PPG RAM)

• Peripheral function

— A/D converter

8 bits, 14 channels, successive approximation system

(Conversion time of 20µs/16MHz)

— Serial interface

Incorporated 8-bit, 8-stage FIFO for data

(Auto transfer for 1 to 8 bytes), 1 channel

8-bit clock sync type, 1 channel

— Timer

8-bit timer/counter, 2 channels

19-bit time base timer

32kHz timer/counter

— High precision timing pattern generation

PPG 19 pins 32-stage programmable circuit

RTG 5 pins, 1 channel

5-bit, 8-satge FIFO (RECCTL control), 1channel

— PWM/DA gate output

12 bits, 2 channels (Repetitive frequency 62.5kHz/16MHz)

DA gate pulse output, 13 bits, 2 channels

— Analog signal input circuit

Capstan FG amplifier circuit

Drum FG amplifier circuit

Drum PG amplifier circuit

PBCTL amplifier circuit

— CTL write/rewrite circuit

Recording current control circuit

— Servo input control

Capstan FG, Drum FG/PG, CTL input

— VSYNC separator

— FRC capture unit

Incorporated 26-bit and 8-stage FIFO

— PWM output

14-bit, 1 channel

— VISS/VASS circuit

Pulse duty auto detection circuit

— 32kHz timer/event counter

32kHz oscillation circuit, ultra-low speed instruction mode

— Remote control reception circuit

8-bit pulse measurement counter, 6-stage FIFO

— Tri-state output

PPG 1 pin, output 8 pins

— Pseudo HSYNC output function

— High speed head switching circuit

• Interruption

20 factors, 15 vectors, multi-interruption possible

• Standby mode

SLEEP/STOP

• Package

100-pin plastic QFP

• Piggyback/evaluation chip

CXP88800 100-pin ceramic QFP

– 1 –

CXP88732/88740/88748

100 pin QFP (Plastic)

E96109-ST

CMOS 8-bit Single Chip Microcomputer

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by

any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the

operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

Structure

Silicon gate CMOS IC