5 debug unit user interface – Rainbow Electronics AT91CAP9S250A User Manual

Page 416

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416

6264A–CAP–21-May-07

AT91CAP9S500A/AT91CAP9S250A

31.5

Debug Unit User Interface

Table 31-2.

Debug Unit Memory Map

Offset

Register

Name

Access Reset

Value

0x0000

Control Register

DBGU_CR

Write-only

0x0004

Mode Register

DBGU_MR

Read/Write

0x0

0x0008

Interrupt Enable Register

DBGU_IER

Write-only

0x000C

Interrupt Disable Register

DBGU_IDR

Write-only

0x0010

Interrupt Mask Register

DBGU_IMR

Read-only

0x0

0x0014

Status Register

DBGU_SR

Read-only

0x0018

Receive Holding Register

DBGU_RHR

Read-only

0x0

0x001C

Transmit Holding Register

DBGU_THR

Write-only

0x0020

Baud Rate Generator Register

DBGU_BRGR

Read/Write

0x0

0x0024 - 0x003C

Reserved

0x0040

Chip ID Register

DBGU_CIDR

Read-only

0x0044

Chip ID Extension Register

DBGU_EXID

Read-only

0x0048

Force NTRST Register

DBGU_FNR

Read/Write

0x0

0x004C - 0x00FC

Reserved

0x0100 - 0x0124

PDC Area

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