135
CHAPTER 6 PORT FUNCTIONS
Table 6-2. Port Functions (
µ
PD78078Y Subseries) (2/2)
Pin Name
Function
Alternate Function
P60
N-ch open drain input/output port.
P61
On-chip pull-up resistor can be specified by
P62
Port 6.
mask option. (Mask ROM version only).
P63
8-bit input/output port.
LEDs can be driven directly.
P64
Input/output mode can be specified
If used as an input port, an on-chip pull-
RD
P65
bit-wise.
up resistor can be connected by software.
WR
P66
WAIT
P67
ASTB
Port 7.
3-bit input/output port.
Input/output mode can be specified bit-wise.
If used as an input port, an on-chip pull-up resistor can be connected by software.
Port 8.
8-bit input/output port.
Input/output mode can be specified bit-wise.
If used as an input port, an on-chip pull-up resistor can be connected by software.
P90
N-ch open drain input/output port.
P91
On-chip pull-up resistor can be specified by
P92
Port 9.
mask option. (Mask ROM version only).
P93
7-bit input/output port.
LEDs can be driven directly.
—
P94
Input/output mode can be specified bit-wise.
If used as an input port, an on-chip pull-
P95
up resistor can be connected by software.
P96
Port 10.
4-bit input/output port.
Input/output mode can be specified bit-wise.
If used as an input port, an on-chip pull-up resistor can be connected by software.
Port 12.
8-bit input/output port.
Input/output mode can be specified bit-wise.
If used as an input port, an on-chip pull-up resistor can be connected by software.
Port 13.
2-bit input/output port.
Input/output mode can be specified bit-wise.
If used as an input port, an on-chip pull-up resistor can be connected by software.
P100
TI5/TO5
P101
TI6/TO6
P102, 103
—
P120 to P127
RTP0 to RTP7
P130, P131
ANO0, ANO1
P70
SI2/RxD
P71
SO2/TxD
P72
SCK2/ASCK
—
P80 to P87
A0 to A7
Summary of Contents for PD78076
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