描述 Description

The CXP85300A/85390A are CMOS 8-bit 1-chip microcomputers that serve as both piggyback and evaluator. The CXP85300A/85390A are developed for evaluating the function of the CXP85324A/CXP 85332A/85340A.

特性 Features

? Instruction set which supports a wide array of data types

— 213 types of instructions which include 16-bit calculations, multiplication and division arithmetic, and boolean bit operations.

? Minimum instruction cycle 1μs/4MHz (4MHz version) 0.5μs/8MHz (8MHz version)

? EPROM 27C512 LCC type 27C512

? Incorporated RAM capacity 576 bytes

? EPROM for custom font (CXP85390A only) LCC type 27C256, LCC type 27C512 (used volume is 16K bytes)

? Peripheral functions

— On-screen display function 12 × 18 dots, 256 types 15 colors, 21 characters × 12 lines Black frame output half blanking, shadow, background color on full screen/ half blanking

Double scanning mode, jitter elimination circuit

— I2C bus interface

— PWM output 14 bits, 1 channel 8 bits, 8 channels

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

— A/D converter 8 bits, 4 channels, successive approximation system (conversion time of 40μs/4MHz, 8MHz)

— HSYNC counter

— Power supply frequency counter

— Watchdog timer

— Serial I/O 8-bit clock synchronized

— Timers 8-bit timer, 8-bit timer/counter, 19-bit time-base timer

? Interrupts 14 factors, 14 vectors multi-interruption possible

? Standby mode Sleep

? Package 64-pin ceramic SDIP/QFP