SH7055S Datasheet, PDF (691/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

20.3.4 Port B Control Registers H and L (PBCRH, PBCRL)
Port B control registers H and L (PBCRH, PBCRL) are 16-bit readable/writable registers that
select the functions of the 16 multiplex pins in port B. PBCRH selects the functions of the pins for
the upper 8 bits of port B, and PBCRL selects the functions of the pins for the lower 8 bits.
PBCRH and PBCRL are initialized to H'0000 by a power-on reset (excluding a WDT power-on
reset), and in hardware standby mode. They are not initialized in software standby mode or sleep
mode.
Port B Control Register H (PBCRH)
Bit: 15
14
13
12
11
10
9
8
PB15 PB15 PB14 PB14
—
PB13 PB12 PB12
MD1 MD0 MD1 MD0
MD MD1 MD0
Initial value: 0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W
R
R/W R/W R/W
Bit:
Initial value:
R/W:
7
PB11
MD1
0
R/W
6
PB11
MD0
0
R/W
5
PB10
MD1
0
R/W
4
PB10
MD0
0
R/W
3
PB9
MD1
0
R/W
2
PB9
MD0
0
R/W
1
PB8
MD1
0
R/W
0
PB8
MD0
0
R/W
• Bits 15 and 14—PB15 Mode Bits 1 and 0 (PB15MD1, PB15MD0): These bits select the
function of pin PB15/PULS5/SCK2.
Bit 15: PB15MD1
0
1
Bit 14: PB15MD0
0
1
0
1
Description
General input/output (PB15)
APC pulse output (PULS5)
Serial clock input/output (SCK2)
Reserved (Do not set)
(Initial value)
Rev.2.0, 07/03, page 653 of 960