W681307 Datasheet, PDF (92/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM

W681307
AS1_ENA
When set, the acoustic suppression (AS1) function will be enabled.
AGC
When set, enable AGC function.
* The acoustic suppression (AS2) function is always enabled.
13.3.2
UP_RESET
Address
0x14C1
Access Mode Value At Reset Nominal Value
R/W
0x08
0x00
Bit 7
Bit 6
Blocked
(for test modes)
RESERVED
Bit 5
RESERVED
Bit 4
AEC_Reset
Bit 3
Bit 2
Bit 1
Bit 0
Power Down
Blocked
Blocked
Blocked
(for test modes) (for test modes) (for test modes)
Power Down
AEC_Reset
13.3.3
When set,
When set,
EC_BELTA
Power down the AEC unit to save power. Speech signal will bypass AEC
module.
Setting this bit will cause the AEC registers, including the activation registers
and performance adjustment registers, to be reseted to their hardware reset
values.
Address
0x14C2
Access Mode Value At Reset Nominal Value
R/W
0x03
0xE0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
NS_Enable
NetAcIdle
* Blocked
(for test modes)
Absolute
Blocked
(for test modes)
Absolute
When set, the double talk detection algorithm is based on absolute value of Acoustic power.
NetAcIdle
When set, the double sides don’t have any voice; it will mute in Network side.
NS_Enable
If this bit is set "0", noise suppressor is by-passed. If this bit is set "1", then noise suppressor is enabled.
* Blocked (for test modes) must be set to 1.
13.3.4
Specific Register
Address
0x14C3
Access Mode Value At Reset Nominal Value
R/W
0x03
0x03
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RESERVED RESERVED RESERVED RESERVED
Blocked
(for test modes)
13.4
13.4.1
13.4.1.1
Performance Adjustment Registers
Acoustic Suppressor Register
AS_BUILD_UP_TIME
Address
0x14C4
Access Mode Value At Reset Nominal Value
R/W
0x07
0x55
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Publication Release Date: May, 2007
Revision 1.3