SH7018 Datasheet, PDF (307/431 Pages) Renesas Technology Corp – SuperH™ RISC engine

Bit 2—PB1 Mode (PB1MD): Selects the function of the PB1/A17 pin.
Bit 2: PB1MD
0
1
Description
General input/output (PB1)
Address output (A17)
(Initial value)
Bit 1—Reserved: This bit is always read as 0 and should only be written with 0.
Bit 0—PB0 Mode (PB0MD): Selects the function of the PB0/A16 pin.
Bit 0: PB0MD
0
1
Description
General input/output (PB0)
Address output (A16)
(Initial value)
14.3.5 Port C IO Register (PCIOR)
The port C IO register (PCIOR) is a 16-bit readable/writable register that selects the input/output
direction of the pins in port C. The bits of this register correspond to the various pins. PCIOR is
enabled when the port C pins function as general input/output (PC15 to PC0) pins, and disabled
otherwise.
When the port C pins function as PC15 to PC0, a pin becomes an output when the corresponding
bit in PCIOR is set to 1, and an input when the bit is cleared to 0.
PCIOR is initialized to H'0000 by an external power-on reset. However, it is not initialized by a
WDT reset, in standby mode, or in sleep mode. In these cases it retains its previous data.
Bit: 15
14
13
12
11
10
9
8
PC15IOR PC14IOR PC13IOR PC12IOR PC11IOR PC10IOR PC9IOR PC8IOR
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
PC7IOR PC6IOR PC5IOR PC4IOR PC3IOR PC2IOR PC1IOR PC0IOR
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
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