Table 20: Selectable Mute Conditions - Analog Devices Advantiv ADV7604 Hardware Manual

1
WAIT_UNMUTE[2:0], HDMI Map, Address 0x1A,[3:1]
Function
WAIT_UNMUTE[2:0]
000
001
010
011
100
101
110
111
Bit Name
MT_MSK_COMPRS_
AUD
MT_MSK_ AUD_
CHNG_PCM
MT_MSK_PARITY_E
RR
MT_MSK_VCLK_CH
NG
MT_MSK_APLL_UN
LOCK
MT_MSK_VPLL_UN
LOCK
MT_MSK_ACR_NOT
_DET
MT_MSK_FLATLINE
_DET
MT_MSK_FIFO_UND
ERFLOW
MT_MSK_FIFO_OVE
RFLOW
Rev. F August 2010
inactive.
Prevents audio from unmuting automatically after all mute
conditions have become inactive. Audio can be unmuted
manually if all mute conditions are inactive and
NOT_AUTO_UNMUTE is set to 0 and back to 1.
Description
Disables delayed unmute. ADV7604 unmutes audio immediately
after all mute conditions are inactive if NOT_AUTO_UNMUTE is
set to 0.
Unmutes 250 ms after all mute conditions become inactive.
Unmutes 500 ms after all mute conditions become inactive.
Unmutes 750 ms after all mute conditions become inactive.
Unmutes 1 s after all mute conditions become inactive.
Unmutes 1.5 s after all mute conditions become inactive.
Unmutes 2 s after all mute conditions become inactive.
Reserved

Table 20: Selectable Mute Conditions

HDMI Description
Map
Address
0x14[5] Causes audio mute if the part receives
Audio Sample Packet with compressed
data
0x14[4] Causes audio mute if audio mode
changes between PCM, DSD or HBR
0x14[1] Causes the audio mute if parity bits in
audio samples or streams (HBR/DSD)
are not correct
0x14[0] Causes the audio mute if TMDS clock
has irregular/missing pulses
0x15[7] Causes audio mute if audio PLL
unlocks
0x15[6] Causes audio mute if TMDS PLL
unlocks
0x15[5] Causes audio mute if ACR packets are
not received within one VSync
0x15[3] Causes audio mute if flatline bit in
audio packets is set
0x15[1] Causes audio to mute if audio FIFO
underflows
0x15[0] Causes audio to mute if audio FIFO
overflows
147
ADV7604
Corresponding
Status Registers(s)
CS_DATA
AUDIO_SAMPLE
_PCKT_DET
PARITY_ERROR_
RAW
VCLK_CHNG_RA
W
AUDIO_PLL_LOC
KED
VIDEO_PLL_LCK
_RAW
AUDIO_C_PCKT_
RAW
AUDIO_FLT_LIN
E_RAW
TMDS_CLK_A_R
AW,
TMDS_CLK_B_R
AW,
TMDS_CLK_C_R
AW
FIFO_OVERFLO_
RAW