When Interface Check mode is enabled, the AD7606C clocks out a fixed data word instead of the conversion result.
This word will depend on whether a 16-bit (AD7606C-16) or 18 bit (AD7606C-18) generic is used.
| Channel Number | AD7606C-16 | AD7606C-18 |
| V1 | 0xACCA | 0x2ACCA |
| V2 | 0x5CC5 | 0x15CC5 |
| V3 | 0xA33A | 0x2A33A |
| V4 | 0xA33A | 0x15335 |
| V5 | 0xCAAC | 0x0CAAC |
| V6 | 0xC55C | 0x0C55C |
| V7 | 0x3AA3 | 0x33AA3 |
| V8 | 0x3553 | 0x33553 |