Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
269
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
24.6
Debug Unit (DBGU) User Interface
Table 24-3. Register Mapping
Offset
Register
Name
Access Reset
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
–
–
–