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| HD6473837H Datasheet, PDF (164/562 Pages) Renesas Technology Corp – Hardware Manual | |||
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Port Mode Register 3 (PMR3)
Bit
Initial value
Read/Write
7
6
CS STRB
0
0
R/W
R/W
5
SO2
0
R/W
4
3
2
SI2 SCK2 SO1
0
0
0
R/W
R/W
R/W
1
0
SI1 SCK1
0
0
R/W
R/W
PMR3 is an 8-bit read/write register, controlling the selection of pin functions for port 3 pins.
Upon reset, PMR3 is initialized to H'00.
Bit 7âP37/CS Pin Function Switch (CS): This bit selects whether pin P37/CS is used as P37 or
as CS.
Bit 7: CS
0
1
Description
Functions as P37 I/O pin
Functions as CS input pin
(initial value)
Bit 6âP36/STRB Pin Function Switch (STRB): This bit selects whether pin P36/STRB is used
as P36 or as STRB.
Bit 6: STRB
0
1
Description
Functions as P36 I/O pin
Functions as STRB output pin
(initial value)
Bit 5âP35/SO2 Pin Function Switch (SO2): This bit selects whether pin P35/SO2 is used as P35 or
as SO2.
Bit 5: SO2
0
1
Description
Functions as P35 I/O pin
Functions as SO2 output pin
(initial value)
Bit 4âP34/SI2 Pin Function Switch (SI2): This bit selects whether pin P34/SI2 is used as P34 or
as SI2.
Bit 4: SI2
0
1
Description
Functions as P34 I/O pin
Functions as SI2 input pin
(initial value)
147
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