RL78/F13, F14 CHAPTER 4 PORT FUNCTIONS
R01UH0368EJ0210 Rev.2.10 334
Dec 10, 2015
4.3.13 Peripheral I/O redirection register 4 (PIOR4)
This register is used to specify whether to enable or disable the peripheral I/O redirect function.
PIOR4 enables or disables redirection of the serial communication functions; that is, it specifies which I/O port is
assigned to each serial data I/O pin of CAN, serial data I/O pin of LIN, serial data I/O pin of the serial array unit, clock
I/O pin, and slave select input pin.
This register can be set by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Figure 4-86. Format of Peripheral I/O Redirection Register 4 (PIOR4)
Address: F001AH After reset: 00H R/W
Symbol 7 6 5 4 3 2 1 0
PIOR4 0 PIOR46 PIOR45 PIOR44 PIOR43 PIOR42 PIOR41 PIOR40
Bit Function 100-pin 80-pin 64-pin 48-pin 32-pin
Setting value Setting value Setting value Setting value Setting value
0 1 0 1 0 1 0 1 0 1
PIOR46 CRxD0 P11 P73 P11
Note 1
P73
Note 1
P11
Note 1
P73
Note 1
P11
Note 1
P73
Note 1
P11
Note 2

CTxD0 P10 P72 P10
Note 1
P72
Note 1
P10
Note 1
P72
Note 1
P10
Note 1
P72
Note 1
P10
Note 2

PIOR45 LRxD1 P11 P107 P11
Note 3

P11
Note 3

P11
Note 3

Use
prohibited
LTxD1 P10 P106 P10
Note 3

P10
Note 3

P10
Note 3

PIOR44 LRxD0 P14 P43 P14 P43 P14 P43 P14

P14

LTxD0 P13 P42 P13 P42 P13 P42 P13

P13

PIOR43 SI11/
SDA11
P70 P152
Note 6
P70
Note 4

P70
Note 4

P70
Note 4

Use
prohibited
SO11 P72 P151 P72
Note 4

P72
Note 4

P72
Note 4

SCL11/
SCK11
P71 P153
Note 6
P71
Note 4

P71
Note 4

P71
Note 4

SSI11 P73 P150 P73
Note 4

P73
Note 4

P73
Note 4

PIOR42 SI10/
SDA10/
RxD1
P11 P75
Note 6
P11
Note 4
P75
Note 4, 6
P11
Note 4
P75
Note 4, 6
P11
Note 4

P11
Note 5

SO10/
TxD1
P12 P74 P12
Note 4
P74
Note 4
P12
Note 4
P74
Note 4
P12
Note 4

P12
Note 5

SCL10/
SCK10
P10 P76
Note 6
P10
Note 4
P76
Note 4, 6
P10
Note 4
P76
Note 4, 6
P10
Note 4

P10
Note 5

SSI10 P54 P77 P54
Note 4
P77
Note 4

P77
Note 4
   
PIOR41 SI01/
SDA01
P13 P53
Note 6
P13 P53
Note 6
P13 P53
Note 6
P13

P13

SO01 P120 P51 P120 P51 P120 P51 P120

P120

SCL01/
SCK01
P14 P52
Note 6
P14 P52
Note 6
P14 P52
Note 6
P14

P14

SSI01 P125 P50 P125 P50 P125 P50 P125

P125

PIOR40 SI00/
SDA00/
RxD0
P16 P61 P16 P61 P16 P61 P16 P61 P16 P61
SO00/
TxD0
P15 P62 P15 P62 P15 P62 P15 P62 P15 P62
SCL00/
SCK00
P17 P60 P17 P60 P17 P60 P17 P60 P17 P60
SSI00 P30 P63 P30 P63 P30 P63 P30 P63 P30 P63