SH7101 datasheet(451/560 Pages) RENESAS

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Section 14 Pin Function Controller (PFC)

Rev.1.00 Sep. 18, 2008 Page 417 of 522

REJ09B0069-0100

14.1.4

Port B Control Registers 1 and 2 (PBCR1 and PBCR2)

PBCR1 and PBCR2 are 16-bit readable/writable registers that select the multiplexed pin function

of the pins on port B.

Note that bit 9 in PBCR1 and bits 3 to 0 in PBCR2 are disabled in the SH7108.

(1) Port B Control Registers 1 and 2 (PBCR1 and PBCR2) in SH7108

Bit

Bit Name

Initial

Value

R/W

Description

PBCR1

PBCR2

15, 14

8 to 0

15 to 12

3 to 0

—

All 0

Reserved

These bits are always read as 0. The write value

should always be 0.

PBCR1

PBCR2

PB5MD2

PB5MD1

PB5MD0

R/W

PB5 Mode

Select the function of the PB5/

IRQ3/POE3 pin.

000: PB5 I/O (port)

011: Setting prohibited

001:

IRQ3 input (INTC) 1xx: Setting prohibited

010:

POE3 input (port)

PBCR1

PBCR2

PB4MD2

PB4MD1

PB4MD0

R/W

PB4 Mode

Select the function of the PB4/

IRQ2/POE2 pin.

000: PB4 I/O (port)

011: Setting prohibited

001:

IRQ2 input (INTC) 1xx: Setting prohibited

010:

POE2 input (port)

PBCR1

PBCR2

PB3MD2

PB3MD1

PB3MD0

R/W

PB3 Mode

Select the function of the PB3/

IRQ1/POE1 pin.

000: PB3 I/O (port)

011: Setting prohibited

001:

IRQ1 input (INTC) 1xx: Setting prohibited

010:

POE1 input (port)

PBCR1

PBCR2

PB2MD2

PB2MD1

PB2MD0

R/W

PB2 Mode

Select the function of the PB2/

IRQ0/POE0 pin.

000: PB2 I/O (port)

011: Setting prohibited

001:

IRQ0 input (INTC) 1xx: Setting prohibited

010:

POE0 input (port)

Legend: x: Don’t care.

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