Section 15 Pin Function Controller (PFC)
Rev. 3.00 Sep. 27, 2007 Page 520 of 758
REJ09B0243-0300
15.1.1
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.
However, bits 15 to 10, 5, and 2 of PAIORL are disabled in SH7124.
The initial value of PAIORL is H'0000.
Bit:
Initial value:
R/W:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
PA15
IOR
PA14
IOR
PA13
IOR
PA12
IOR
PA11
IOR
PA10
IOR
PA9
IOR
PA8
IOR
PA7
IOR
PA6
IOR
PA5
IOR
PA4
IOR
PA3
IOR
PA2
IOR
PA1
IOR
PA0
IOR
15.1.2
Port A Control Registers L1 to L4 (PACRL1 to PACRL4)
PACRL1 to PACRL4 are 16-bit readable/writable registers that are used to select the functions of
the multiplexed pins on port A.
SH7125:
•
Port A Control Register L4 (PACRL4)
Bit:
Initial value:
R/W:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
-
PA15
MD2
PA15
MD1
PA15
MD0
-
PA14
MD2
PA14
MD1
PA14
MD0
-
PA13
MD2
PA13
MD1
PA13
MD0
-
PA12
MD2
PA12
MD1
PA12
MD0
Bit Bit
Name
Initial
Value
R/W Description
15
0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
Содержание SH7124 R5F7124
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