Datasheet

41
Table 1.7 Pin Functions (cont)
Classification Symbol I/O Name Function
I/O ports POE0–
POE3
I Port output
enable
Input pin for port pin drive control
when general use ports are
established as output.
PA0–
PA15
(QFP-112)
PA0–
PA23
(QFP-144)
I/O General purpose
port
General purpose input/output port
pins.
Each bit can be designated for
input/output.
PB0–PB9 I/O General purpose
port
General purpose input/output port
pins.
Each bit can be designated for
input/output.
PC0–
PC15
I/O General purpose
port
General purpose input/output port
pins.
Each bit can be designated for
input/output.
PD0–
PD15
(QFP-112)
PD0–
PD31
(QFP-144)
I/O General purpose
port
General purpose input/output port
pins.
Each bit can be designated for
input/output.
PE0–
PE15
I/O General purpose
port
General purpose input/output port
pins.
Each bit can be designated for
input/output.
PF0–PF7 I General purpose
port
General purpose input port pins.
Usage Notes
1. Unused input pins should be pulled up or pulled down.
2. The WDTOVF pin should not be pulled down in the SH7044/SH7045 F-ZTAT version.
However, if it is necessary to pull this pin down, a resistance of 100 kΩ or higher should be
used.