UPD78320 Datasheet, PDF (12/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

1. LIST OF PIN FUNCTIONS
1.1 PORT PINS
Pin Name
I/O
Input/
P00 to P07
output
P20
P21
P22
P23
Input
P24
P25
P26
P27
P30
P31
P32
Input/
output
P33
P34
Input/
P40 to P47
output
P50 to P57 ^Input/
output
P70 to P77 _Input
P80
P81
P82
Input/
P83
output
P84
P85
P90
P91
Input/
P92
output
P93
Function
Port 0
8-bit input/output port
Input/output can be specified bit-wise
Also serves as a realtime output port.
Port 2
8-bit dedicated input port
Port 3
5-bit input/output port
Input/output can be specified bit-wise
Port 4
8-bit input/output port
Input/output can be specified in 8-bit unit.
Port 5
8-bit input/output port
Input/output can be specified bit-wise
Port 7
8-bit dedicated input port
Port 8
6-bit input/output port
Input/output can be specified bit-wise
Port 9
4-bit input/output port
Input/output can be specified bit-wise
12
µPD78320, 78322
Dual-
Function Pin
RTP0 to
RTP7
NMI
INTP0
INTP1
INTP2
INTP3
INTP4
INTP5
INTP6/TI
TXD
RXD
SO/SB0
SI/SB1
SCK
AD0 to AD7
A8 to A15
AN0 to AN7
TO00
TO01
TO02
TO03
TO10
TO11
RD
WR
TAS
TMD