CXP872P48A Datasheet, PDF (12/32 Pages) Sony Corporation – CMOS 8-bit Single Chip Microcomputer

Pin
Port I
Circuit format
Port I data
PI1/RMC
PI4/INT1/NMI
PI7/SI1
3 pins
PI5/SCK1
PI6/SO1
2 pins
Port I direction
Data bus
RD (Port I)
PI1: To remote control circuit
PI4: To interruption circuit
PI7: To serial CH1
Port I
Port I function
select
IP
Schmitt input
From serial CH1
Port I data
MPX
Port I direction
Data
bus
RD (Port I)
Port J
Port J data
MPX
IP
Note)
PI5 is schmitt input
PI6 is inverter input
To serial CH1
PJ0
to
PJ7
8 pins
CS0
SI0
2 pins
Port J direction
IP
Data bus
RD
(Port J)
Standby release
Edge detection
Data bus
RD
Schmitt input
IP
To SIO
SO0
1 pin
SO0 from SIO
SO0 output enable
– 12 –
CXP872P48A
When reset
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z