cx25840 Conexant Systems, Inc., cx25840 Datasheet - Page 252

• Manufacturer Part Number: cx25840
• Description: Video Decoder And Broadcast Audio
• Manufacturer: Conexant Systems, Inc.

Register Map
5-110
Path1 Audio Select Control
[7:4]
[3:0]
Path1 AVC Control1
[7:4]
[3]
[2:0]
Bits
Bits
RW
RW
RW
RW
RW
Type
Type
0111
0000
0011
1
000
Default
Default
PATH1_AVC_RMS_CON
PATH1_SEL_CTL
PATH1_AVC_AT
PATH1_AVC_STEREO
PATH1_AVC_CR
Name
Name
Conexant
Define AVC attack time
0000 = 0
0001 = 10 ms
0010 = 20 ms
0011 = 100 ms
0100 = 500 ms
0101 = 1 s
0110 = 2 s
0111 = 4 s
1000 = 8 s
0 = Independence Mode
1 = Stereo Mode
Define path 1 AVC compression ratio
000 = 2:1
001 = 4:1
010 = 8:1
011 = 16:1
100 = 32:1
101 ~ 111 RESERVED
Define AVC time gain for level detection
0x0 = 0
0x1 = 10 ms
0x2 = 20 ms
0x3 = 100 ms
0x4 = 500 ms
0x5 = 1 s
0x6 = 2 s
0x7 = 4 s
0xF = 8 s
Source select for the first baseband audio processing
path
0x0 = Analog Demod Main Channel
0x1 = Analog Demod Sub Channel
0x2 = Serial Audio Input
0x3 = AC97
Description
Description
CX25840/1/2/3 Data Sheet
Address 0x8D0
Address 0x8D1
102284B
8/3/05