UPD78F9500MA-CAC-A Datasheet, PDF (23/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

CHAPTER 2 PIN FUNCTIONS
2.1 Pin Function List
2.1.1 μPD78F920x
(1) Port pins
Pin Name
I/O
Function
After Reset Alternate-Function
Pin
P20
P21
P22^{Note 1}
P23^{Note 1}
I/O
Port 2.
4-bit I/O port.
Can be set to input or output mode in 1-bit units.
An on-chip pull-up resistor can be connected by setting
software.
Input
ANI0/TI000/TOH1
ANI1/TI010/
TO00/INTP0
X2/ANI2^{Note 1}
X1/ANI3^{Note 1}
P32
I/O
Port 3
Can be set to input or output mode in
1-bit units.
An on-chip pull-up resistor can be
connected by setting software.
Input
INTP1
P34^{Note 1}
P40, P43^{Note 2}
Input
I/O
Input only
Port 4.
2-bit I/O port.
Can be set to input or output mode in 1-bit units.
An on-chip pull-up resistor can be connected by setting
software.
Input
Input
RESET^{Note 1}
−
Notes 1. For the setting method for pin functions, see CHAPTER 15 OPTION BYTE.
2. At program initialization, set PM41, PM42, and PM44 to PM47 to "0".
Caution The P22/X2/ANI2 and P23/X1/ANI3 pins are pulled down during reset.
User’s Manual U18172EJ3V0UD
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