描述 Description

The CXP974096 is a CMOS 16-bit microcomputer integrating on a single chip an A/D converter, serial interface, I2C bus interface, timer, PWM output circuit, programmable pattern generator, remote control receive circuit, parallel interface, as well as basic configurations like a 16-bit CPU, ROM, RAM, and I/O port.

This LSI also provides the sleep/stop functions that enable lower power consumption.

特性 Features

? An efficient instruction set as a controller

— Direct addressing, numerous abbreviated forms,

multiplication and division instructions

? Instruction sets for C language and RTOS

— Highly quadratic instruction system,

general-purpose register of 16-bit × 8-pin × 16-bank

configuration

? Minimum instruction cycle

50ns at 40MHz operation (2.7 to 3.6V)

? Incorporated ROM capacity 384K bytes

? Incorporated RAM capacity 23.5K bytes

? Peripheral functions

— A/D converter 8-bit 12-analog input, successive approximation system,

3-stage FIFO (Conversion time: 1.55μs at 40MHz)

— Serial interface Asynchronous serial interface (UART)

128-byte buffer RAM, 3 channels

— I2C bus interface 64-byte buffer RAM

(supports master/slave and automatic transfer mode)

— Timers 8-bit timer/counter, 2 channels (with timing output)

16-bit capture timer/counter (with timing output)

16-bit timer, 4 channels, watchdog timer

— PWM output circuit 14-bit PWM, 4 channels

(2 channels of binary output switch function by PPG)

— Programmable pattern generator 16-bit output, 64-byte buffer RAM, 1 channel

— Remote control receive circuit 8-bit pulse measurement counter, 10-stage FIFO

— Parallel interface External register interface (8-bit parallel bus), 4-chip select

? Interruption 33 factors, 33 vectors, multi-interruption and priority selection possible

? Standby mode Sleep/stop

? Package 100-pin plastic QFP

100-pin plastic LQFP

? Piggy/evaluation chip CXP971000

? FLASH EEPROM incorporated version CXP974F096