Renesas rl78 User Manual
RL78/G1A
CHAPTER 17 KEY INTERRUPT FUNCTION
17.3.5 Peripheral I/O redirection register (PIOR)
This register is used to specify whether to enable or disable the peripheral I/O redirect function.
This function is used to switch ports to which alternate functions are assigned.
Use the PIOR register to assign a port to the function to redirect and enable the function.
In addition, can be changed the settings for redirection until its function enable operation. The PIOR register can be set
by an 8-bit memory manipulation instruction.
Reset signal generation sets this register to 00H.
Figure 17-6. Format of Peripheral I/O Redirection Register (PIOR)
Address: F0077H After reset: 00H R/W
Symbol
7 6 5 4 3 2 1 0
PIOR
0 0 0 0 0 0
PIOR1
PIOR0
64-pin 48-pin 32-pin 25-pin
Setting value of
PIOR1, PIOR0
Setting value of
PIOR1, PIOR0
Setting value of
PIOR1, PIOR0
Setting value of
PIOR1, PIOR0
Function
0, 0
0, 1
1, 0
1, 1
0, 0
0, 1
1, 0
1, 1
0, 0
0, 1
1, 0
1, 1
0, 0
0, 1
1, 0
1, 1
KR0 P70
P00
P10
P70
P02
P10
P70
P120
P10
−
P02
KR1 P71
P01
P11
P71
P03
P11
−
P02
P11
−
P03
KR2 P72
P02
P12
P72
P22
P12
−
P03
P12
−
P22
KR3 P73
P03
P13
P73
P23
P13
−
P22
P13
−
P23
KR4 P74
P04
P14
P74
P24
P14
−
P23
P14
−
−
KR5 P75
P22
P15
P75
P25
P15
−
P24
P15
−
−
KR6 P76
P23
P151
−
−
−
−
−
−
−
−
KR7 P77
P24
P152
−
−
−
−
−
−
−
−
KR8 P05
P25
P153
−
−
−
−
−
−
−
−
KR9 P06
Setting
prohibited
P26
P154
−
Setting
prohibited
−
−
−
Setting
prohibited
−
−
−
Setting
prohibited
−
Setting
prohibited
R01UH0305EJ0200 Rev.2.00
721
Jul 04, 2013