SAM4L Datasheet, PDF (95/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

9.3.1 Chip ID Register
Name:
CIDR
Access:
Read-only
Offset:
0x0
Reset Value:
-
ATSAM4L4/L2
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
7
6
5
4
3
2
1
0
EPROC
VERSION
• EXT: Extension Flag
0 = Chip ID has a single register definition without extension
1 = An extended Chip ID exists.
• NVPTYP: Nonvolatile Program Memory Type
Value
0
1
4
2
3
Name
ROM
ROMLESS
SRAM
FLASH
ROM_FLASH
Description
ROM
ROMless or on-chip Flash
SRAM emulating ROM
Embedded Flash Memory
ROM and Embedded Flash Memory
NVPSIZ is ROM size
NVPSIZ2 is Flash size
42023C–SAM–02/2013
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