SH7080_09 Datasheet, PDF (1139/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

Section 21 Pin Function Controller (PFC)
21.1.3 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 PB9IOR to PB0IOR correspond to pins PB9 to PB0 (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 (PB9 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, bit 3 of PBIORL is disabled in SH7083.
Bits 15 to 10 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.
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
PB9 PB8 PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0
IOR IOR IOR IOR IOR IOR IOR IOR IOR IOR
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
21.1.4 Port B Control Registers L1 to L3 (PBCRL1 to PBCRL3 )
PBCRL1 to PBCRL3 are 16-bit readable/writable registers that are used to select the function of
the multiplexed pins on port B.
SH7083:
• Port B Control Register L3 (PBCRL3)
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
PB9 PB9 PB9
MD2 MD1 MD0
-
PB8 PB8 PB8
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
R
R
R
R
R
R
R R/W R/W R/W R R/W R/W R/W
Initial
Bit
Bit Name Value R/W Description
15 to 7 ⎯
All 0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
Rev. 4.00 Dec. 15, 2009 Page 1079 of 1558
REJ09B0181-0400