AD5940
Data Sheet
SILICON IDENTIFICATION
The AD5940 contains a chip ID register and a hardware
revision register.
always equal to 0x4144. The CHIPID register contains the
device identifier (Bits[15:4] and silicon revision number
(Bits[3:0]). The device identifier changes with silicon revision.
These registers can be read by software to allow users to
determine the revision of the silicon currently in use. ADIID is
IDENTIFICATION REGISTERS
Table 11. Identification Registers Summary
Address
Name
ADIID
CHIPID
Description
Reset
Access
0x00000400
0x00000404
Analog Devices Inc., identification register
Chip identification register
0x4144
0x5502
R
R
Analog Devices, Inc., Identification Register—ADIID
Address 0x00000400, Reset: 0x4144, Name: ADIID
Table 12. Bit Descriptions for ADIID Register
Bits
Bit Name
Settings
Description
Reset
Access
[15:0]
ADIID
Analog Devices identifier. Always equal to 0x4144.
0x4144
R
Chip Identification Register—CHIPID
Address 0x00000404, Reset: 0x5502, Name: CHIPID
Table 13. Bit Descriptions for CHIPID Register
Bits
[15:4]
[3:0]
Bit Name
Part ID
Revision
Settings
Description
Device identifier
Silicon revision number
Reset
0x550
0x3
Access
R
R
Rev. 0 | Page 26 of 130
ADI [ ADI ]
