描述 Description

The CXP85400/85490 are CMOS 8-bit 1-chip microcomputers that serve as both piggyback and evaluator. The CXP85400/85490 are developed for evaluating the function of the CXP85452/85460.

Note that CXP85400 corresponds to the fixed font, and CXP85490 corresponds to the custom font respectively.

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 0.5μs/8MHz

? EPROM 27C512 LCC type 27C512 (Maximum of 60K bytes are available.)

? Incorporated RAM capacity 960 bytes

? EPROM for custom font (CXP85490 only) LCC type 27C256, LCC type 27C512 (used volume is 24K bytes)

? Peripheral functions

— On-screen display function 12 × 18 dots, 384 types 15 colors, 32 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 20μs/8MHz)

— HSYNC counter 2 channels

— 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