Datasheet

AD7176-2 Data Sheet

Rev. A | Page 46 of 68

COMMUNICATIONS REGISTER

Address: 0x00, Reset: 0x00, Name: COMMS

Table 22. Bit Descriptions for COMMS

Bits Bit Name Settings Description Reset Access

WEN

This bit must be low to begin communications with the ADC. 0x0 W

6 R/

This bit determines if the command is a read or write operation. 0x0 W

0 Write command

1 Read command

[5:0] RA The register address bits determine which register is to be read from or

written to as part of the current communication.

0x00 W

000000 Status Register

000001 ADC Mode Register

000010

Interface Mode Register

000011 Register Checksum Register

000100 Data Register

000110 GPIO Configuration Register

000111 ID Register

010000

Channel Map 1 Register

010001 Channel Map 2 Register

010010 Channel Map 3 Register

010011 Channel Map 4 Register

100000 Setup Configuration 1 Register

100001 Setup Configuration 2 Register

100010 Setup Configuration 3 Register

100011 Setup Configuration 4 Register

101000 Filter Configuration 1 Register

101001 Filter Configuration 2 Register

101010 Filter Configuration 3 Register

101011 Filter Configuration 4 Register

110000

Offset 1 Register

110001 Offset 2 Register

110010 Offset 3 Register

110011 Offset 4 Register

111000 Gain 1 Register

111001 Gain 2 Register

111010 Gain 3 Register