Hdmi Acr Packet Transmission - Analog Devices ADV8005 Hardware Reference Manual

UG-707

6.18. HDMI ACR PACKET TRANSMISSION

A mode has been added to the HDMI Tx to ensure more efficient transmission of audio samples in 176.4 kHz and 192 kHz modes. This ensures
ACR packets can get sent more frequently on the
arc_eff_tran_en, TX2 Main Map, Address 0xF447[0]
When enable it ensures more efficient transmission of ARC packets and audio samples in 176.4kHz and 192kHz modes. This ensures ACR
packets can get sent at the right rate (~1ms).
Function
arc_eff_tran_en
0
1 (default)
TX OUTPUT PORT
CAN SINK DEVICE
NO
RECEIVE TMDS CLK FREQUENCIES
GREATER THAN 165MHz ?
TX OUTPUT PORT
SOURCE TERMINATION
OFF
Figure 109: ADV8005
ADV8005
Description
ARC packet efficient transmision disable.
ARC packet efficient transmition enable.
ADV8005 Hardware Reference Manual
CONNECTED TO
SINK DEVICE
YES
IS TX OUTPUT'S
NO
TMDS CLK FREQUENCY
GREATER THAN 165MHz ?
Tx Source Termination Requirements
for these modes than is the case for the equivalent modes on the ADV8003.
Rev. A | Page 242 of 317
YES TX OUTPUT PORT
SOURCE TERMINATION
ON