A N 5 4 3
80
Rev. 0.9
Property 0x040F FM_SOFT_MUTE_ASSI200DEV_ATTENUATION
The FM_SOFT_MUTE_ASSI200DEV_ATTENUATION property sets the maximum attenuation in dB that will be
applied by the ASSI200DEV softmute feature. The CTS bit (and optional interrupt) is set when it is safe to send the
next command. This property may only be set or read in powerup mode.
Si475x-A20 and earlier: This property is not available.
Si475x-A30 and later, Default: 0
Units: dB
Property 0x0410 FM_SOFT_MUTE_ASSI200DEV_ATTACK_TIME
The FM_SOFT_MUTE_ASSI200DEV_ATTACK_TIME property sets maximum time in ms it takes to mute the
audio. The CTS bit (and optional interrupt) is set when it is safe to send the next command. This property may only
be set or read in powerup mode.
Si475x-A20 and earlier: This property is not available.
Si475x-A30 and later, Default: 128
Units: ms
FM_SOFT_MUTE_ASSI200DEV_ATTENUATION
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0x00
SMATTN_ASSI200DEV[6:0]
0x00
0x00
Bit
Name
Function
15:8
Reserved
Always write to 0.
7:0
SMATTN_ASSI200DEV[6:0]
Sets the maximum attenuation in dB that will be applied by the
ASSI200DEV softmute feature. Default is 0 dB. Range is 0–
63 dB.
FM_SOFT_MUTE_ASSI200DEV_ATTACK_TIME
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ATTACK_ASSI200DEV[15:0]
0x0080
Bit
Name
Function
15:0
ATTACK_ASSI200DEV[15:0]
Sets the maximum time in ms it takes to mute the audio.
Note that there will be 16 ms of filter delay for the ASSI200DEV
metric before softmute can engage/disengage.
Default is 128 ms. Range is 1–32767 ms.
