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42023E–SAM–07/2013
ATSAM4L8/L4/L2
9. Chip Identifier (CHIPID)
9.1 Description
Chip Identifier registers permit recognition of the device and its revision. These registers provide
the sizes and types of the on-chip memories, as well as the set of embedded peripherals.
Two chip identifier registers are embedded: CIDR (Chip ID Register) and EXID (Extension ID).
Both registers contain a hard-wired value that is read-only. The first register contains the follow-
ing fields:
• EXT - shows the use of the extension identifier register
• NVPTYP and NVPSIZ - identifies the type of embedded non-volatile memory and its size
• ARCH - identifies the set of embedded peripherals
• SRAMSIZ - indicates the size of the embedded SRAM
• EPROC - indicates the embedded ARM processor
• VERSION - gives the revision of the silicon
The second register is device-dependent and reads 0 if the bit EXT is 0.
9.2 Embedded Characteristics
• Chip ID Registers
– Identification of the Device Revision, Sizes of the Embedded Memories, Set of
Peripherals, Embedded Processor
Table 9-1. ATSAM4L Chip IDs Register
Chip Name Family Flash/RAM Package CHIPID_CIDR CHIPID_EXID
ATSAM4LC8C (Rev A) ATSAM4LC 512K/64K 100-pin 0xAB0B0AE0 0x1400000F
ATSAM4LC4C (Rev A) ATSAM4LC 256K/32K 100-pin 0xAB0A09E0 0x0400000F
ATSAM4LC2C(Rev A) ATSAM4LC 128K/32K 100-pin 0xAB0A07E0 0x0400000F
ATSAM4LC8B (Rev A) ATSAM4LC 512K/64K 64-pins 0xAB0B0AE0 0x1300000F
ATSAM4LC4B (Rev A) ATSAM4LC 256K/32K 64-pins 0xAB0A09E0 0x0300000F
ATSAM4LC2B (Rev A) ATSAM4LC 128K/32K 64-pins 0xAB0A07E0 0x0300000F
ATSAM4LC8A (Rev A) ATSAM4LC 512K/64K 48-pins 0xAB0B0AE0 0x1200000F
ATSAM4LC4A (Rev A) ATSAM4LC 256K/32K 48-pins 0xAB0A09E0 0x0200000F
ATSAM4LC2A (Rev A) ATSAM4LC 128K/32K 48-pins 0xAB0A07E0 0x0200000F
ATSAM4LS8C (Rev A) ATSAM4LS 512K/64K 100-pins 0xAB0B0AE0 0x14000002
ATSAM4LS4C (Rev A) ATSAM4LS 256K/32K 100-pins 0xAB0A09E0 0x04000002
ATSAM4LS2C (Rev A) ATSAM4LS 128K/32K 100-pins 0xAB0A07E0 0x04000002
ATSAM4LS8B (Rev A) ATSAM4LS 512K/64K 64-pins 0xAB0B0AE0 0x13000002
ATSAM4LS4B (Rev A) ATSAM4LS 256K/32K 64-pins 0xAB0A09E0 0x03000002
ATSAM4LS2B (Rev A) ATSAM4LS 128K/32K 64-pins 0xAB0A07E0 0x03000002