SH7137 Datasheet, PDF (845/1160 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 20 Pin Function Controller (PFC)
20.1.3 Port B I/O Register L (PBIORL)
PBIORL is a 16-bit readable/writable register that is used to set the pins on port B as inputs or
outputs. Bits PB7IOR to PB0IOR correspond to pins PB7 to PB0, respectively (names of
multiplexed pins are here given as port names and pin numbers alone). PBIORL is enabled when
the port B pins are functioning as general-purpose inputs/outputs (PB7 to PB0). In other states,
PBIORL is disabled.
A given pin on port B will be an output pin if the corresponding bit in PBIORL is set to 1, and an
input pin if the bit is cleared to 0.
However, bits 1 and 0 of PBIORL are disabled in SH7136.
Bits 15 to 8 of PBIORL are reserved. These bits are always read as 0. The write value should
always be 0.
The initial value of PBIORL is H'0000.
• Port B I/O Register L (PBIORL)
Bit: 15 14 13 12 11 10 9
-
-
-
-
-
-
-
Initial value: 0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
8
7
6
5
4
3
2
1
0
-
PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0
IOR IOR IOR IOR IOR IOR IOR IOR
0
0
0
0
0
0
0
0
0
R R/W R/W R/W R/W R/W R/W R/W R/W
20.1.4 Port B Control Registers L1, L2 (PBCRL1, PBCRL2)
PBCRL1 and PBCRL2 are 16-bit readable/writable registers that are used to select the function of
the multiplexed pins on port B.
SH7136:
• Port B Control Register L2 (PBCRL2)
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
PB7 PB7 PB7
MD2 MD1 MD0
-
PB6 PB6 PB6
MD2 MD1 MD0
-
PB5 PB5 PB5
MD2 MD1 MD0
-
PB4 PB4 PB4
MD2 MD1 MD0
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: 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
Rev. 2.00 Sep. 10, 2008 Page 819 of 1130
REJ09B0402-0200