AT91 datasheet(98/153 Pages) ATMEL

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AT91X40 Series

1354D–ATARM–08/02

SF Memory Mode Register

This register only applies to the AT91R40807.

Access Type:

Read/Write

Reset Value:0

Offset:0x0C

• RAMWU: Internal Extended RAM Write Detection (Code Label SF_RAMWU)

0 = Writing in RAM generates an Abort.

1 = Writing in RAM is allowed.

SF Protect Mode Register

Access Type:

Read/Write

Reset Value:0

Offset:0x18

• PMRKEY: Protect Mode Register Key (Code Label SF_PMRKEY)

Used only when writing SF_PMR. PMRKEY is reads 0.

0x27A8: Write access in SF_PMR is allowed.

Other value: Write access in SF_PMR is prohibited.

• AIC: AIC Protect Mode Enable (Code Label SF_AIC)

0 = The Advanced Interrupt Controller runs in Normal Mode.

1 = The Advanced Interrupt Controller runs in Protect Mode.

See “Protect Mode” on page 60.

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RAMWU

PMRKEY

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AIC

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