SH7147 Datasheet, PDF (771/1108 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 18 Pin Function Controller (PFC)
18.1.1 Port A I/O Register L (PAIORL)
PAIORL is a 16-bit readable/writable register that is used to set the pins on port A as inputs or
outputs. Bits PA15IOR to PA0IOR correspond to pins PA15 to PA0 (names of multiplexed pins
are here given as port names and pin numbers alone). PAIORL is enabled when the port A pins are
functioning as general-purpose inputs/outputs (PA15 to PA0). In other states, PAIORL is disabled.
A given pin on port A will be an output pin if the corresponding bit in PAIORL is set to 1, and an
input pin if the bit is cleared to 0.
The initial value of PAIORL is H'0000.
Bit: 15
PA15
IOR
Initial value: 0
R/W: R/W
14
PA14
IOR
0
R/W
13
PA13
IOR
0
R/W
12
PA12
IOR
0
R/W
11
PA11
IOR
0
R/W
10
PA10
IOR
0
R/W
9
PA9
IOR
0
R/W
8
PA8
IOR
0
R/W
7
PA7
IOR
0
R/W
6
PA6
IOR
0
R/W
5
PA5
IOR
0
R/W
4
PA4
IOR
0
R/W
3
PA3
IOR
0
R/W
2
PA2
IOR
0
R/W
1
PA1
IOR
0
R/W
0
PA0
IOR
0
R/W
Rev. 3.00 Oct. 06, 2008 Page 747 of 1080
REJ09B0230-0300