Analog Devices Advantiv ADV7619 Hardware User's Manual page 78

UG-237
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 as this is indeterminable.
•
A corresponding interrupt can be enabled for CS_DATA_VALID_RAW by setting the mask CS_DATA_VALID_MB1 or
CS_DATA_VALID_MB2. Refer to the Interrupts section for additional information on the interrupt feature.
General Control and Mode Information
The general control and mode information are specified in Byte 0 of the channel status. For more information, refer to the IEC60958
standards.
CS_DATA[0] , Consumer/Professional Application, HDMI Map, Address 0x36[0]
Function
CS_DATA[0]
0 (default)
1
START
ENABLE THE CS_DATA_VALID_ST
INTERRUPT
NO
IS
CS_DATA_VALID_S
T SET TO 1?
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 0x36 TO 0x3A
IS
CS_DATA_VALID_S
T SET TO 1?
NO
THE CHANNEL STATUS BITS PREVIOUSLY
READ ARE VALID
Figure 27. Reading Valid Channel Status Flags
Description
Consumer application
Professional application
Rev. A | Page 78 of 204
Hardware User Guide
NO
THE CHANNEL STATUS BITS PREVIOUSLY
READ ARE NOT VALID
YES