Analog Devices Advantiv ADV7619 Hardware User's Manual page 62

UG-237
AUDIO_SAMPLE_PCKT_DET , Addr 68 (HDMI), Address 0x18[0] (Read Only)
Audio sample packet detection bit. This bit resets to zero on the 11th HSync leading edge following an audio packet if a subsequent audio
sample packet has not been received or if a DSD, DST, or HBR audio packet sample packet has been received.
Function
AUDIO_SAMPLE_PCKT_DET
0 (default)
1
DSD_PACKET_DET , Addr 68 (HDMI), Address 0x18[1] (Read Only)
DSD audio packet detection bit. This bit resets to zero on the 11th HSync leading edge following a DSD packet or if an audio, DST, or
HBR packet sample packet has been received or after an HDMI reset condition.
Function
DSD_PACKET_DET
0 (default)
1
DST_AUDIO_PCKT_DET , Addr 68 (HDMI), Address 0x18[2] (Read Only)
DST audio packet detection bit. This bit resets to zero on the 11th HSync leading edge following a DST packet if a subsequent DST has
not been received. Or if an audio, DSD, or HBR packet sample packet has been received or after an HDMI reset condition.
Function
DST_AUDIO_PCKT_DET
0 (default)
1
HBR_AUDIO_PCKT_DET , Addr 68 (HDMI), Address 0x18[3] (Read Only)
HBR Packet detection bit. This bit resets to zero on the 11th HSync leading edge following an HBR packet if a subsequent HBR packet has
not been detected. It also resets if an Audio, DSD or DST packet sample packet has been received and after an HDMI reset condition.
Function
HBR_AUDIO_PCKT_DET
0 (default)
1
Notes
•
The ADV7619 processes only one type of audio packet at a time.
•
The ADV7619 processes the latest type of audio packet that it received.
•
AUDIO_SAMPL_PCKT_DET, DSD_PACKET_DET, DST_AUDIO_PCKT_DET, and HBR_AUDIO_PCKT_DET are reset to 0
when a HDMI packet detect reset condition occurs.
•
A corresponding interrupt can be enabled for AUDIO_MODE_CHNG_RAW by setting the mask AUDIO_MODE_CHNG_MB1 or
AUDIO_MODE_CHNG_MB2. Refer to the Interrupts section for additional information on the interrupt feature.
Description
No L_PCM or IEC 61937 compressed audio sample packet received within the last 10 HSync
L_PCM or IEC 61937 compressed audio sample packet received within the last 10 HSyncs
Description
No DSD packet received within the last 10 HSync
DSD packet received within the last 10 HSync
Description
No DST packet received within the last 10 HSync
DST packet received within the last 10 HSync
Description
No HBR audio packet received within the last 10 HSync
HBR audio packet received within the last 10 HSync
Rev. A | Page 62 of 204
Hardware User Guide