SH7018 datasheet(307/431 Pages) RENESAS

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Bit 2—PB1 Mode (PB1MD): Selects the function of the PB1/A17 pin.

Bit 2: PB1MD

Description

General input/output (PB1)

(Initial value)

Address output (A17)

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

Description

General input/output (PB0)

(Initial value)

Address output (A16)

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:

PC15IOR PC14IOR PC13IOR PC12IOR PC11IOR PC10IOR PC9IOR

PC8IOR

Initial value:

R/W:

R/W

Bit:

PC7IOR

PC6IOR

PC5IOR

PC4IOR

PC3IOR

PC2IOR

PC1IOR

PC0IOR

Initial value:

R/W:

R/W

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