CHAPTER 2 PIN FUNCTIONS
(1) Port pins (2/2)
Pin Name
I/O
I/O
Function
After Reset
Input
Alternate Function
P80, P81Note
Port 8.
−
2-bit I/O port.
Input/output can be specified in 1-bit units.
When used as an input port, an on-chip pull-up resistor can be
specified by means of pull-up resistor option register B8 (PUB8).
P90 to P97Note
I/O
Port 9.
Input
−
8-bit I/O port.
Input/output can be specified in 1-bit units.
When used as an input port, an on-chip pull-up resistor can be
specified by means of pull-up resistor option register B9 (PUB9).
Note µPD789426, 789436 Subseries only
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User’s Manual U15075EJ1V0UM00
NEC [ NEC ]
