Data Sheet

74
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
12.13.9 Coresight ROM Table Entry n
Name: ENTRYn
Offset: 0x1000+n*0x4 [n=0..1]
Reset: 0xXXXXX00X
Property: Write-Protected
z Bits 31:12 – ADDOFF[19:0]: Address Offset
The base address of the component, relative to the base address of this ROM table.
z Bits 11:2 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z Bit 1 – FMT: Format
Always read as one, indicates a 32-bit ROM table.
z Bit 0 – EPRES: Entry Present
This bit indicates whether an entry is present at this location in the ROM table.
This bit is set at powerup if the device is not protected indicating that the entry is not present.
This bit is cleared at powerup if the device is not protected indicating that the entry is present.
Bit 3130292827262524
ADDOFF[19:12]
AccessRRRRRRRR
ResetXXXXXXXX
Bit 2322212019181716
ADDOFF[11:4]
AccessRRRRRRRR
ResetXXXXXXXX
Bit 151413121110 9 8
ADDOFF[3:0]
AccessRRRRRRRR
ResetXXXX0000
Bit 76543210
FMT EPRES
AccessRRRRRRRR
Reset0000001X