SH7146 Datasheet, PDF (716/1022 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 17 Pin Function Controller (PFC)
17.1.4 Port B Control Registers L1, L2, H1 (PBCRL1, PBCRL2, PBCRH1)
PBCRL1, PBCRL2, and PBCRH1 are 16-bit readable/writable registers that are used to select the
function of the multiplexed pins on port B.
SH7146:
• Port B Control Register H1 (PBCRH1)
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
PB18
MD
-
-
-
PB17
MD
-
-
-
PB16
MD
Initial value: 0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
1
R/W: R
R
R
R
R
R
R R/W* R
R
R R/W* R
R
R R/W*
Note: * After a power-on reset, write can be performed only once.
Rewrite must be performed when the POE function is selected as the initial value.
Bit
15 to 9
Bit Name

8
PB18MD
7 to 5 
4
PB17MD
3 to 1 
Initial
Value
All 0
1
All 0
1
All 0
R/W
R
R/W*
R
R/W*
R
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
PB18 Mode
Select the function of the PB18/POE8 pin.
0: PB18 I/O (port)
1: POE8 input (POE)
Reserved
These bits are always read as 0. The write value
should always be 0.
PB17 Mode
Select the function of the PB17/POE7 pin.
0: PB17 I/O (port)
1: POE7 input (POE)
Reserved
These bits are always read as 0. The write value
should always be 0.
Rev. 3.00 May 17, 2007 Page 672 of 974
REJ09B0229-0300