Monitoring Acr Parameters - Analog Devices Advantiv ADV7604 Hardware Manual

N, ACR N, HDMI Map, Address 0x5D, [3:0]; Address 0x5E, [7:0]; Address 0x5F, [7:0]
Function
N
N[19:16]
N[15:8]
N[7:0]
xxxx xxxxxxxx xxxxxxxx

7.17.2 Monitoring ACR Parameters

The reception of ACR packets can be notified via the
and CTS can be monitored via the
described in this section.
AUDIO_C_PCKT_RAW , IO Map, Address 0x65, [1]
Function
AUDIO_C_PCKT_RAW
0
1
CHANGE_N_RAW , IO Map, Address 0x74, [3]
Function
CHANGE_N_RAW
0
1
CTS_PASS_THRSH_RAW , IO Map, Address 0x74, [4]
Function
CTS_PASS_THRSH_RA
W
0
1
CTS_CHANGE_THRESHOLD[5:0], HDMI Map, Address 0x10, [5:0]
Function
CTS_CHANGE_
THRESHOLD[5:0]
000111
Rev. F August 2010
Description
Address 0x5D, [3:0]
Address 0x5E, [7:0]
Address 0x5F, [7:0]
Readback value for N
CHANGE_N_RAW
Description
No audio clock regeneration packet received since last
detection flag reset condition.
Audio clock regeneration packet received. Reset to 0 on a
detection flag reset condition.
Description
Audio clock regeneration parameter N has not changed.
Audio clock regeneration N parameter has changed by at least 1
unit. Reset to 0 by setting CHANGE_N _ST (IO Map, Address
0x76[3])
Description
Audio clock regeneration CTS parameter has not changed by more
than value set in CTS_CHANGE_THRESHOLD.
Audio clock regeneration CTS parameter has changed by more
than value set in CTS_CHANGE_THRESHOLD. Reset to 0 by
setting CTS_PASS_THRSH _ST (IO Map, Address 0x76[4]).
Description
Tolerance of CTS value for CTS_PASS_THRSH_RAW and
MT_MSK_NEW_CTS
151
AUDIO_C_PCKT_RAW
and CTS_PASS_THRSH_RAW
ADV7604
flag. Changes in N
flags, as
packet
packet