UPD70433 Datasheet, PDF (10/166 Pages) NEC – V55PITM 16-BIT MICROPROCESSOR

1. PIN FUNCTIONS
1.1 LIST OF PIN FUNCTIONS
1.1.1 Port Pins
Pin Name
P00 to P07
Input/Output
Input/output
Function
Port 0
Input/output specifiable bit-wise
8-bit input/output port
P10*
P11
P12
Port 1
P13
Input
7-bit input port
P14
P15
P16
P20
P21
P22
Port 2
Input/output specifiable bit-wise
P23
6-bit input/output port
P24
P25
P30
P31
P32
Port 3
Input/output Input/output specifiable bit-wise
P33
7-bit input/output port
P34
P35
P36
P40 to P47
Port 4
Input/output specifiable bit-wise
8-bit input/output port
P50
P51
P52
P60 to P63
P70 to P77
P80
P81
Port 5
Input/output specifiable bit-wise
3-bit input/output port
Input
Input/output
Port 6
Input/output specifiable bit-wise
4-bit input/output port
Port 7
Input/output specifiable bit-wise
8-bit input/output port
Port 8
Input/output specifiable bit-wise
2-bit input/output port
* Unusable as general-purpose port (non-maskable interrupt)
10
µPD70433
Alternate Function
NMI
INTP0
INTP1
INTP2
INTP3/TI
INTP4
INTP5
PWM
TO00
TO01
TO20
TO21
TO30
TxD0/SB0/SO0
RxD0/SB1/SI0
TxC/SCK0
CTS0
TxD1/SO1
RxD1/SI1
CTS1/SCK1
PD0 to PD7
DATASTB
ACK
BUSY
ANI0 to ANI3
RTP0 to RTP7
DMARQ0
DMARQ1