These 6 registers together give the 192-bit Channel Status Information that is received over the Audio stream. A write to any of the six registers would clear all the six registers.
|32bit AES value: 32-bit AES Channel Status value.
The 6 registers give the value in order of LSB to MSB. The register 0x2C returns the bits [31:0] of 192-bit channel status, while register 0x40 returns the bits [191:160]. This value is always taken from Channel0.