NEC 78K0 User Manual page 48

(1) Port pins (2/2)
Pin Name I/O
P50 to P57 I/O
P60 to P63 I/O
P64
P65
P66
P67
P70 to P77 I/O
P120 I/O
P130 Output
P140 I/O
P141
P142
P143
P144
P145
48
CHAPTER 2 PIN FUNCTIONS
Function
Port 5.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 6.
8-bit I/O port.
Input/output can be
specified in 1-bit units.
Port 7.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 12.
1-bit I/O port.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 13.
1-bit output-only port.
Port 14.
6-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
User's Manual U15947EJ2V0UD
Input
N-ch open-drain I/O port. Input
Use of an on-chip pull-up
resistor can be specified
by a mask option only for
mask ROM versions.
Use of an on-chip pull-up
resistor can be specified
by a software setting.
Input
Input
*
Output
Input
After Reset Alternate Function
A8 to A15
−
RD
WR
WAIT
ASTB
KR0 to KR7
INTP0
−
PCL/INTP6
BUZ/BUSY0/
INTP7
SCKA0
SIA0
SOA0
STB0