描述 Description

The CXR702080 is a CMOS 32-bit microcomputer integrating on a single chip an A/D converter, serial interface, timer, bus interface unit, DMA controller, memory stick interface, and as well as basic configurations like a 32-bit RISC CPU, ROM, RAM, and I/O port.

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

特性 Features

? CPU SR11 series 32-bit RISC CPU core

? Minimum instruction cycle 54.3ns (fSRC: 18.432MHz) 30.5μs (fTEX: 32.768kHz)

? Incorporated ROM 256K bytes

? Incorporated RAM 16K bytes

? Peripheral functions

— Bus interface unit

— DMA controller 4 channels

— A/D converter 8-bit 4-analog input, successive approximation system

— Serial interface Clock synchronization, 2 channels Clock synchronization, 1 channel (Incorporated 64-byte buffer RAM) Asynchronization, 2 channels

— Timers 8-bit timer, 8 channels 16-bit capture timer, 3 channels 8-bit time-base timer Clock prescaler 16-bit watchdog timer

— Memory stick interface

— Beep output circuit

— External interruption 11 channels (polarity selection and both edge detection possible)

? Standby mode Idle/sleep/stop

? Package 176-pin plastic LFLGA