描述 Description

The CXP87352/87360 is a CMOS 8-bit microcomputer which consists of A/D converter, serial interface, timer/counter, time base timer, vector interruption, high precision timing pattern generation circuit, PWM generator, PWM for tuner, VISS/VASS circuit, 32kHz timer/event counter, remote control receiving circuit, general purpose prescaler, HSYNC counter, VCR vertical sync separation circuit and the measurement circuit which measure signals of capstan FG and drum FG/PG 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.

特性 Features

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

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

? Minimum instruction cycle 250ns at 16MHz operation

333ns at 12MHz operation

122μs at 32kHz operation

? Incorporated ROM capacity 52K bytes (CXP87352), 60K bytes (CXP87360)

? Incorporated RAM capacity 2048 bytes

? Peripheral functions

— A/D converter 8-bit, 12-channel, successive approximation system(Conversion time 20.0μs/16MHz)

— Serial Interface Incorporated buffer RAM (1 to 32 bytes auto transfer) 1-channel Incorporated 8-bit and 8-stage FIFO for data(1 to 8 bytes auto transfer) 1-channel

— Timer 8-bit timer, 8-bit timer/counter, 19-bit time base timer, 32kHz timer/counter

— High precision timing pattern generator PPG 19-pin 32-stage programmable RTG 5-pin 2-channel

— PWM/DA gate output PWM 12-bit, 2-channel (Repetitive frequency 62kHz/16MHz) DA gate pulse output 13-bit, 4-channel

— 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

— Remote control receiving circuit 8-bit pulse measurement counter with on-chip, 6-stage FIFO

— General purpose prescaler 7-bit (SYNC1 input frequency divided, FRC capture possible)

— HSYNC counter 12-bit event counter (Counts SYNC1 input.)

? Interruption 22 factors, 15 vectors, multi-interruption possible

? Standby mode SLEEP/STOP

? Package 100-pin plastic QFP/LQFP

? Piggyback/evaluation chip CXP87300 100-pin ceramic QFP/LQFP