SH7014 datasheet(485/754 Pages) RENESAS

485 / 754 page

16. Pin Function Controller (PFC)

Rev.5.00 Sep. 27, 2007 Page 451 of 716

REJ09B0398-0500

Bit 8

⎯PA4 Mode (PA4MD): Selects the function of the PA4/TxD1 pin.

Bit 8

PA4MD

Description

General input/output (PA4)

(initial value)

Transmit data output (TxD1)

Bit 7

⎯Reserved: This bit always reads as 0. The write value should always be 0.

Bit 6

⎯PA3 Mode (PA3MD): Selects the function of the PA3/RxD1 pin.

Bit 6

PA3MD

Description

General input/output (PA3)

(initial value)

Receive data input (RxD1)

Bits 5 and 4

⎯PA2 Mode 1, 0 (PA2MD1 and PA2MD0): These bits select the function of the

PA2/SCK0/

DREQ0/IRQ0 pin.

Bit 5

PA2MD1

Bit 4

PA2MD0

Description

General input/output (PA2)

(initial value)

Serial clock input/output (SCK0)

DMA transfer request received input (

DREQ0)

(PA2 in single-chip mode)

Interrupt request input (

IRQ0)

Bit 3

⎯Reserved: This bit always reads as 0. The write value should always be 0.

Bit 2

⎯PA1 Mode (PA1MD): Selects the function of the PA1/TxD0 pin.

Bit 2

PA1MD

Description

General input/output (PA1)

(initial value)

Transmit data output (TxD0)

Bit 1

⎯Reserved: This bit always reads as 0. The write value should always be 0.

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