Channel Status - Analog Devices Advantiv ADV7619 Hardware User's Manual

Hardware User Guide
CTS_CHANGE_THRESHOLD[5:0] , Addr 68 (HDMI), Address 0x10[5:0]
Sets the tolerance for change in the CTS value. This tolerance is used for the audio mute mask MT_MSK_NEW_CTS and the HDMI
status bit CTS_PASS_THRSH_RAW and the HDMI interrupt status bit CTS_PASS_THRSH_ST. This register controls the amounts of
LSBs that the CTS can change before an audio mute, status change or interrupt is triggered.
Function
CTS_CHANGE_THRESHOLD[5:0]
100101 (default)
xxxxxx

CHANNEL STATUS

Channel status bits are extracted from the HDMI audio packets of the 1
CHANNEL_STATUS_DATA_X of the HDMI Map (where X = 1, 2, 3, 4, and 5).
Validity Status Flag
The channel status readback described in the Channel Status section should be considered valid if CS_DATA_VALID_RAW is set to 1.
Figure 27 shows the algorithm that can be implemented to monitor the read valid channel status bit using the CS_DATA_VALID_RAW flag.
CS_DATA_VALID_RAW , IO, Address 0x65[7] (Read Only)
Raw status signal of channel status data valid signal.
Function
CS_DATA_VALID_RAW
0 (default)
1
Description
Tolerance of CTS value for CTS_PASS_THRSH_RAW and MT_MSK_NEW_CTS
Tolerance of CTS value for CTS_PASS_THRSH_RAW and MT_MSK_NEW_CTS
Description
Channel status data is not valid.
Channel status data is valid.
Rev. A | Page 77 of 204
st
audio channel (that is, Channel 0) and stored in registers
UG-237