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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