NEC PD78058FY(A) User Manual
Page 78
78
CHAPTER 4 PIN FUNCTION (
µ
PD78058FY SUBSERIES)
N-ch open drain input/output port.
On-chip pull-up resistor can be
specified by mask option.
(Mask ROM version only).
LEDs can be driven directly.
(1) Port pins (2/3)
Pin Name
Input/Output
Function
After Reset Alternate Function
P30
Input/
Port 3.
Input
TO0
P31
output
8-bit input/output port.
TO1
P32
Input/output mode can be specified bit-wise.
TO2
P33
If used as an input port, an on-chip pull-up resistor can be used by
TI1
P34
software.
TI2
P35
PCL
P36
BUZ
P37
—
P40 to P47
Input/
Port 4.
Input
AD0 to AD7
output
8-bit input/output port.
Input/output mode can be specified in 8-bit units.
If used as an input port, an on-chip pull-up resistor can be used by
software.
Test input flag (KRIF) is set to 1 by falling edge detection.
P50 to P57
Input/
Port 5.
Input
A8 to A15
output
8-bit input/output port.
LED can be driven directly.
Input/output mode can be specified bit-wise.
If used as an input port, an on-chip pull-up resistor can be used by software.
P60
Input/
Port 6.
Input
—
P61
output
8-bit input/output port.
P62
Input/output mode can be
P63
specified bit-wise.
P64
If used as an input port, an on-chip
RD
P65
pull-up resistor can be used by
WR
P66
software.
WAIT
P67
ASTB
P70
Input/
Port 7.
Input
SI2/RxD
P71
output
3-bit input/output port.
SO2/TxD
P72
Input/output mode can be specified bit-wise.
SCK2/ASCK
If used as an input port, an on-chip pull-up resistor can be used by software.