Datasheet

Page
42023E–SAM–07/2013
ATSAM4L8/L4/L2
9.3.1 Chip ID Register
Name: CIDR
Access: Read-only
Offset: 0x0
Reset Value: -
• EXT: Extension Flag
0 = Chip ID has a single register definition without extension
1 = An extended Chip ID exists.
• NVPTYP: Nonvolatile Program Memory Type
31 30 29 28 27 26 25 24
EXT NVPTYP ARCH[7:4]
23 22 21 20 19 18 17 16
ARCH[3:0] SRAMSIZ
15 14 13 12 11 10 9 8
NVPSIZ2 NVPSIZ
76543210
EPROC VERSION
Value Name Description
0ROM ROM
1 ROMLESS ROMless or on-chip Flash
4 SRAM SRAM emulating ROM
2 FLASH Embedded Flash Memory
3 ROM_FLASH
ROM and Embedded Flash Memory
NVPSIZ is ROM size
NVPSIZ2 is Flash size