SH7041A datasheet(654/923 Pages) RENESAS

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• Bits 11 and 10—PA5 Mode 1, 0 (PA5MD1 and PA5MD0): These bits select the function of

the PA5/SCK1/

DREQ1/IRQ1 pin.

Bit 11:

PA5MD1

Bit 10:

PA5MD0

Description

General input/output (PA5) (initial value)

Serial clock input/output (SCK1)

DMA transfer request received input (

DREQ1) (PA5 in single

chip mode)

Interrupt request input (

IRQ1)

• Bit 9—Reserved: This bit always reads as 0. The write value should always be 0.

• 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.

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