CXP877P48A General Description
The CXP877P48A is a CMOS 8-bit microcomputer which consists of A/D converter, serial interface, timer/counter, time base timer, vector interruption, high precision timing pattern generation circuit, PWM generator, PWM for tuner, VISS/VASS circuit, 32kHz timer/event counter, remote control receiving circuit, VCR vertical sync separation circuit and the measuring circuit which measure signals of capstan FG and drum FG/PG and other servo systems, as well as basic configurations like 8-bit CPU, PROM,
RAM and I/O port. They are integrated into a single chip.
Also CXP877P48A provides sleep/stop function which enables to lower power consumption and ultra low speed instruction mode in 32kHz operation.
This IC is the PROM-incorporated version of the CXP87748A with built-in mask ROM. This provides the additional feature of being able to write directly into the program. Thus, it is most suitable for evaluation use during system development and for small-quantity production.
CXP877P48A Maximum Ratings
CXP877P48A Features
• A wide instruction set (213 instructions) which cover various types of data
- 16-bit arithmetic instruction/multiplication and division instructions/boolean bit operation instruction
• Minimum instruction cycle During operation 333ns/12MHz (Supply voltage 3.0 to 5.5V) During operation 250ns/16MHz (Supply voltage 4.5 to 5.5V) During operation 122µs/32kHz
• Incorporated PROM capacity 48Kbytes
• Incorporated RAM capacity 1344bytes
• Peripheral functions
- A/D converter 8-bit, 12-channel, successive approximation system (Conversion time 20.0µs/16MHz)
- Serial interface Incorporated 8-bit and 8-stage FIFO (1 to 8 bytes auto transfer), 1-channel 8-bit serial I/O, 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 pins 32-stage programmable RTG 5-pins 2-channel
- PWM/DA gate output 12-bit, 2-channel (Repetitive frequency 62kHz/16MHz)
- Servo input control Capstan FG, Drum FG/PG, CTL input
- VSYNC separator
- FRC capture unit Incorporated 26-bit and 8-stage FIFO
- PWM output 14-bit, 1-channel
- VISS/VASS circuit Pulse duty auto detection circuit
- Remote control receiving circuit 8-bit pulse measuring counter, 6-stage FIFO
• Interruption 21 factors, 15 vectors, multi-interruption possible
• Standby mode SLEEP/STOP
• Package 100-pin plastic QFP/LQFP
CXP877P48A Connection Diagram
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