UPD784044 Datasheet, PDF (12/90 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLER

µPD784044(A), 784046(A)
5. PIN FUNCTIONS
5.1 Port Pins (1/2)
Pin Name
P00-P03
P10
P11
P12
P13
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34
P35
P36
P37
P40-P47
P50-P57
P60-P63
I/O
Shared by:
I/O RTP0-RTP3
I/O
Input
I/O
I/O
I/O
TO20
TO21
TO30
TO31
NMI
INTP0/TO00
INTP1/TO01
INTP2/TO02
INTP3/TO03
INTP4
INTP5/TI2
INTP6/TI3
TO10
TO11
RxD/SI1
TxD/SO1
ASCK/SCK1
RxD2/SI2
TxD2/SO2
ASCK2/SCK2
AD0-AD7
I/O AD8-AD15
I/O A16-A19
Function
Port 0 (P0):
• 4-bit I/O port
• Can be set in input/output mode bit-wise.
• Pins in input mode can all be connected to pull-up resistors at once
via software.
Port 1 (P1):
• 4-bit I/O port
• Can be set in input/output mode bit-wise.
Port 2 (P2):
• 8-bit I/O port
Input only
Can be set in input/output mode
bit-wise.
Port 3 (P3):
• 8-bit I/O port
• Can be set in input/output mode bit-wise.
Port 4 (P4):
• 8-bit I/O port
• Can be set in input/output mode bit-wise.
• Pins in input mode can all be connected to pull-up resistors at once
via software.
Port 5 (P5):
• 8-bit I/O port
• Can be set in input/output mode bit-wise.
• Pins in input mode can all be connected to pull-up resistors at once
via software.
Port 6 (P6):
• 4-bit I/O port
• Can be set in input/output mode bit-wise.
• Pins in input mode can all be connected to pull-up resistors at once
via software.
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