XMEGAD datasheet(39/309 Pages) ATMEL

39 / 309 page

8210B–AVR–04/10

XMEGA D

4.16

4.16.1

DEVID0 - MCU Device ID Register 0

The DEVID0, DEVID1 and DEVID2 contains the 3-byte identification that identify each micro-

controller device type. For details on the actual ID refer to the device datasheet.

• Bit 7:0 - DEVID0[7:0]: MCU Device ID Byte 1

This byte will always be read as 0x1E. This indicates that the device is manufactured by Atmel

4.16.2

DEVID1 - MCU Device ID Register 1

• Bit 7:0 - DEVID[7:0]: MCU Device ID Byte 1

Byte 1 of the device ID indicates the flash size of the device.

4.16.3

DEVID2 - MCU Device ID Register 2

• Bit 7:0 - DEVID2[7:0]: MCU Device ID Byte 2

Byte 0 of the device ID indicates the device number.

4.16.4

REVID - MCU Revision ID

• Bit 7:4 - Reserved

These bits are reserved and will always read as zero. For compatibility with future devices,

always write these bits to zero when this register is written.

• Bit 3:0 - REVID[3:0]: MCU Revision ID

These bits contains the device revision. 0=A, 1=B and so on.

Bit

+0x00

DEVID0[7:0]

DEVID0

Read/Write

Initial Value

1/0

Bit

+0x01

DEVID1[7:0]

DEVID1

Read/Write

Initial Value

1/0

Bit

+0x02

DEVID2[7:0]

DEVID2

Read/Write

Initial Value

1/0

Bit

543

210

+0x03

–

REVID[3:0]

REVID

Read/Write

RRR

Initial Value

1/0

XMEGAD Datasheet(PDF) 39 Page - ATMEL Corporation

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