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Section 32 General Purpose I/O Ports
R01UH0134EJ0400 Rev. 4.00 Page 1691 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
32.2.3 Port A Port Register 0 (PAPR0)
PAPR0 is a 16-bit read-only register, in which the PA3PR to PA0PR bits correspond to the PA3 to
PA0 pins, respectively. PAPR0 always returns the states of the pins.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
000000000000PA3PA2PA1PA0
RRRRRRRRRRRRRRRR
-----------
PA 3
PR
PA 2
PR
PA1
PR
PA0
PR
-
Bit:
Initial value:
R/W:
Bit Bit Name Initial Value R/W Description
15 to 4 All 0 R Reserved
These bits are always read as 0. The write value
should always be 0.
3 PA3PR Pin state R The pin state is returned. These bits cannot be
modified.
2 PA2PR Pin state R
1 PA1PR Pin state R
0 PA0PR Pin state R
32.2.4 Port B Control Registers 0 to 5 (PBCR0 to PBCR5)
PBCR0 to PBCR5 are 16-bit readable/writable registers that are used to select the functions of the
multiplexed pins on port B.
(1) Port B Control Register 5 (PBCR5)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
-
Bit:
Initial value:
R/W:
0000000000000000/1
R R R R R R R/W R/W R R R/W R/W R R R/W R/W
-----
PB22MD[1:0]
- - PB21MD[1:0] - - PB20MD[1:0]
Bit Bit Name Initial Value R/W Description
15 to 10 All 0 R Reserved
These bits are always read as 0. The write value
should always be 0.