SH7616 Datasheet, PDF (819/935 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7600 Series

Section 19 Pin Function Controller (PFC)
19.3.4 Port B I/O Register (PBIOR)
Bit: 15
14
13
12
11
10
9
8
PB15 PB14 PB13 PB12 PB11 PB10 PB9
PB8
IOR
IOR
IOR
IOR
IOR
IOR
IOR
IOR
Initial value: 0
0
0
0
0
0
0
0
R/W: R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit: 7
6
5
4
3
2
1
0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
IOR
IOR
IOR
IOR
IOR
IOR
IOR
IOR
Initial value: 0
0
0
0
0
0
0
0
R/W: R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
The port B I/O register (PBIOR) is a 16-bit read/write register that selects the input/output
direction of the 16 multiplex pins in port B. Bits PB15IOR to PB0IOR correspond to individual
pins in port B. PBIOR is enabled when port B pins function as general input pins (PB15 to PB0),
and disabled otherwise. When port B pins function as PB15 to PB0, a pin becomes an output when
the corresponding bit in PBIOR is set to 1, and an input when the bit is cleared to 0.
PBIOR is initialized to H'0000 by a power-on reset. It is not initialized by a manual reset or in
standby mode or sleep mode.
Rev. 2.00 Mar 09, 2006 page 793 of 906
REJ09B0292-0200