Figure 47: Reading Valid Channel Status Flags - Analog Devices Advantiv ADV7604 Hardware Manual

Initialization
Check if the CS_DATA_VALID
interrupt has triggered
Read the channel status bits
and decide if they are valid
Notes:
• CS_DATA_VALID_RAW indicates that the first 40 of the channel status bits sent by the
upstream transmitter have been correctly collected. This bit does not indicate if the content of
the channel status bit is corrupted.
• A corresponding interrupt can be enabled for
CS_DATA_VALID_MB1
Map, Address 0x68[7]). Refer to Section
feature.
Rev. F August 2010
Start
Enable the CS_DATA_VALID_ST
interrupt
NO
Is
CS_DATA_VALID_S
T set to 1 ?
YES
Set CS_DATA_VALID_CLR to 1
Is
CS_DATA_VALID_R
AW set to 1
YES
Read the channel status bits in HDMI
Map Reg 0x36 to 0x3A
Is
CS_DATA_VALID_S
T set to 1 ?
NO
The channel status bits previously
read are valid

Figure 47: Reading Valid Channel Status Flags

(IO Map, Address 0x69[7]) or
153
The channel status bits previously
CS_DATA_VALID_RAW
CS_DATA_VALID_MB2
14 for additional information on the interrupt
ADV7604
NO
read are not valid
YES
by setting the mask
(IO