RL78/G13 CHAPTER 4 PORT FUNCTIONS
R01UH0146EJ0100 Rev.1.00 176
Sep 22, 2011
Table 4-4. Settings of Registers When Using Port 1 (2/2)
Pin Name
Name I/O
PM1× PIM1× POM1× PMC××
Alternate Function Setting
Note 10
Remark
1 0
× − ×
CMOS input Input
1 1
×
×
TTL input
P16
Output 0
×
0
TO01 output = 0
Note 4
SO11 output = 1
Note 5
CMOS output
1 0
× − ×
CMOS input Input
1 1
×
×
TTL input
0
×
0 CMOS output
P17
Output
0
×
1
TO02 output = 0
Note 4
SDA11 output = 0
Note 5
SO11 output = 0
Note 6
(SO00/TxD0 output = 1
Note 9
)
N-ch O.D. output
Notes 1. 52-, 64-, 80-, 100-, 128-pin products only.
2. P10/SCK00/SCL00, P11/SI00/RxD0/TOOLRxD/SDA00, P12/SO00/TxD0/TOOLTxD, P13/TxD2/SO20,
P14/RxD2/SI20/SDA20, or P15/SCK20/SCL20 as a general-purpose port, set serial channel enable status
register m (SEm), serial output register m (SOm) and serial output enable register m (SOEm) to the default
status (m = 0, 1).
3. To use P15/PCLBUZ1/SCK20/SCL20 as a general-purpose port in 30- to 52-pin products only, set bit 7
(PCLOE1) of clock output select register 1 (CKS1) to “0”, which is the same as their default status setting.
4. To use P16/TI01/TO01/INTP5 or P17/TI02/TO02 as a general-purpose port, set bits 1 and 2 (TO01, TO02)
of timer output register 0 (TO0) and bits 1 and 2 (TOE01, TOE02) of timer output enable register 0 (TOE0)
to “0”, which is the same as their default status setting.
5 To use P16/TI01/TO01/INTP5/SO11 or P17/TI02/TO02/SI11/SDA11 as a general-purpose port in 20-pin
products only, set serial channel enable status register 0 (SE0), serial output register 0 (SO0) and serial
output enable register 0 (SOE0) to the default status.
6. P17/TI02/TO02/SO11 as a general-purpose port in 24-, 25-pin products only, set serial channel enable
status register 0 (SE0), serial output register 0 (SO0) and serial output enable register 0 (SOE0) to the
default status.
7. If P10 to P15 are used as general-purpose ports and PIOR0 is set to 1, use the corresponding bits in bits 2
to 7 (TO02 to TO07) of Timer output register 0 (TO0) and bits 2 to 7 (TOE02 to TOE07) of Timer output
enable register 0 with “0”, which is the same as their initial setting.
8. To use P13 and P14 as a general-purpose port, do not set PIOR2 to 1.
9. If P17 is used as general-purpose port and PIOR1 is set to 1, use Serial channel enable status register 0
(SE0), Serial output register 0 (SO0) and Serial output enable register 0 (SOE0) with the same setting as
the initial status.
10. The descriptions in parentheses indicate the case where PIORx = 1.
Remark ×: don’t care
PM1×: Port mode register 1
PIM1×: Port input mode register 1
POM1×: Port output mode register 1
PMC1×: Port mode control register 1
PIOR×: Peripheral I/O redirection register
<R>
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