AT91 datasheet(96/153 Pages) ATMEL

96 / 153 page

AT91X40 Series

1354D–ATARM–08/02

• VDSIZ: Volatile Data Memory Size

• ARCH: Chip Architecture (Code Label SF_ARCH)

Code of Architecture: Two BCD digits.

• NVPTYP: Non Volatile Program Memory Type

• EXT: Extension Flag (Code Label SF_EXT)

0 = Chip ID has a single register definition without extensions

1 = An extended Chip ID exists (to be defined in the future).

Chip ID Extension Register

Access Type:

Read Only

Reset Value:

Hardwired

Offset:0x04

This register is reserved for future use. It will be defined when needed.

VDSIZ

Size

Code Label

SF_VDSIZ

000

None

SF_VDSIZ_NONE

001

1K bytes

SF_VDSIZ_1K

010

2K bytes

SF_VDSIZ_2K

100

4K bytes

SF_VDSIZ_4K

000

8K bytes

SF_VDSIZ_8K

Others

Reserved

–

0100 0000

AT91x40yyy

Code Label

SF_ARCH_AT91x40

NVPTYP

Type

Code Label

SF_NVPTYP

Reserved

–

“F” Series

SF_NVPTYP_M

Reserved

–

“R” Series

SF_NVPTYP_R

AT91 Datasheet(PDF) 96 Page - ATMEL Corporation

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