描述 Description

The CXP81900 is a CMOS 8-bit single chip microcomputer of piggyback/evaluator combined type, which is developed for evaluating the function of the CXP81952/81960.

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 (4.5 to 5.5V) 333ns at 12MHz operation (3.0 to 5.5V) 122μs at 32kHz operation

? Applicable EPROM LCC type 27C256, LCC type 27C512 (Maximum 60Kbytes are available.)

? Incorporated RAM capacity 2048 bytes

? Peripheral functions

– A/D converter 8-bit, 12-channel, successive approximation method (Conversion time of 20μs/16MHz)

– Serial interface Incorporated buffer RAM (Auto transfer for 1 to 32 bytes), 1 channel Incorporated 8-bit and 8-stage FIFO (Auto transfer for 1 to 8 bytes), 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 pins, 2 channels

– PWM/DA gate output PWM output 12 bits, 2 channels (Repetitive frequency 62.5kHz/16MHz) DA gate pulse output 13 bits, 4channels

– FRC capture unit Incorporated 26-bit and 8-stage FIFO

– PWM output 14 bits, 1 channel

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

– General purpose prescaler 7 bits (PG5 input frequency division, FRC capture possible.)

– HSYNC counter 12-bit event counter (SYNC1 input count)

? Interruption 20 factors, 15 vectors, multi-interruption possible

? Standby mode SLEEP/STOP

? Package 100-pin ceramic PQFP