CXP87940 Datasheet, PDF (1/28 Pages) Sony Corporation – CMOS 8-bit Single Chip Microcomputer

CXP87940/87948
CMOS 8-bit Single Chip Microcomputer
Description
The CXP87940/87948 is a CMOS 8-bit single chip
microcomputer which consists of A/D converter, serial
interface, timer/counter, time base timer, high
precision timing pattern generation circuit, PWM
output, VISS/VASS circuit, 32kHz timer/counter,
remote control reception circuit, VSYNC separator and
the measurement circuit which measures signals of
capstan FG and drum FG/PG and other servo
systems, as well as basic configurations like 8-bit
CPU, ROM, RAM and I/O port.
Also the CXP87940/87948 provides sleep/stop
functions which enable to lower power consumption.
100 pin QFP (PIastic)
Structure
Silicon gate CMOS IC
Features
• A wide instruction set (213 instructions) which covers various types of data
— 16-bit operation/multiplication and division/Boolean bit operation instructions
• Minimum instruction cycle
250ns at 16MHz operation (4.5V to 5.5V)
122µs at 32kHz operation (2.7V to 5.5V)
• Incorporated ROM capacity 40K bytes (CXP87940), 48K bytes (CXP87948)
• Incorporated RAM capacity 1376 bytes
• Peripheral functions
— A/D converter
8 bits, 12 channels, successive approximation method
(Conversion time of 20.0µs at 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
Incorporated two-wire 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: maximum of 19 pins, 32 stages programmable
RTG: 5 pins, 2 channels
— PWM/DA gate output
PWM: 12 bits, 2 channels (Repetitive frequency of 62kHz at 16MHz)
DA gate pulse output: 13 bits, 4 channels
— 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 bits
— VISS/VASS circuit
Pulse duty auto detection circuit
— Remote control reception circuit
8-bit pulse measurement counter with on-chip 6-stage FIFO
• Interruption
22 factors, 15 vectors, multi-interruption possible
• Standby mode
Sleep/stop
• Package
100-pin plastic QFP
• Piggyback/evaluator
CXP87800 100-pin ceramic PQFP
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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E96X01-PS