Datasheet

167
SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
10.21.3 CPUID Base Register
The CPUID register contains the processor part number, version, and implementation information. See the register
summary in Table 10-30 on page 165 for its attributes. The bit assignments are:
• Implementer
Implementer code:
0x41 = ARM
•Variant
Variant number, the r value in the rnpn product revision identifier:
0x2 = r2p0
• Constant
Reads as 0xF
•PartNo
Part number of the processor:
0xC23 = Cortex-M3
• Revision
Revision number, the p value in the rnpn product revision identifier:
0x0 = r2p0
31 302928 27 26 25 24
Implementer
23 22 21 20 19 18 17 16
Variant Constant
15 14 13 12 11 10 9 8
PartNo
76543 210
PartNo Revision