RL78/G1H CHAPTER 3 PIN FUNCTIONS
R01UH0575EJ0120 Rev. 1.20 Page 21 of 920
Dec 22, 2016
Note 1. Each pin can be specified as digital I/O port by setting port mode control register x (PMCx) (Can be specified in 1-bit
units).
Note 2. This pin is used for connection between the MCU and RF transceiver. For details, refer to CHAPTER 2 CONNECTION
BETWEEN MCU AND RF TRANSCEIVER
.
Note 3. Each pin can be specified as either digital or analog by setting the A/D port configuration register (ADPC).
(2/2)
Function
Name
Pin Type I/O
After Reset
Release
Alternate Function Function
P80 8-1-4 I/O Input port — Port 8.
3-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a software
setting at input port.
P81 —
P82 7-1-4 —
P100 7-3-3 I/O Prohibit I/O — Port 10.
1-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a software
setting at input port.
The digital I/O of P100 is prohibited at reset release
Note 1
.
P120 7-3-3 I/O Analog function ANI19 Port 12.
1-bit I/O port and 4-bit input-only port.
P120 can be set to analog I/O.
For only P120, input/output can be specified.
For only P120, use of an on-chip pull-up resistor can be specified
by a software setting at input port.
P121 2-2-1 Input Input port X1
P122 X2/EXCLK
P123 XT1
P124 XT2/EXCLKS
P130
Note 2
1-1-1 Output Output port — Port 13.
1-bit output-only port and 1-bit input-only port.
P137 2-1-2 Input Input port INTP0
P140 7-1-3 I/O Input port PCLBUZ0/INTP6 Port 14.
5-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a software
setting at input port.
Input of P142 and P143 can be set to TTL input buffer.
Output of P142 to P144 can be set to N-ch open-drain output
(V
DD tolerance).
P141 PCLBUZ1/INTP7
P142 8-1-4 SCK30
P143 SI30/RxD3
P144 7-1-4 SO30/TxD3
P155 4-3-3 I/O Analog function ANI13 Port 15.
2-bit I/O port.
Input/output can be specified in 1-bit units.
Can be set to analog input
Note 3
.
P156 ANI14
RESET
2-1-1 Input — — Input-only pin for external reset.
Connect to V
DD directly or via a resistor when external reset is not
used.
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