W681307DG Datasheet, PDF (85/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM.

W681307
12.3.13
SideTone
Address
0x148D
Access Mode Value At Reset Nominal Value
R/W
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RESERVED RESERVED RESERVED SideTone[4] SideTone[3] SideTone[2] SideTone[1] SideTone[0]
SideTone[4:0]
SideTone[4:0]
Side tone gain is listed as below Table 12-4. This is applied to all active PCM channels between the Mixer Matrix and
PCM formatting. Please refer to 0x14AF to enable the active sidetone channel.
=0, to disable side tone.
12.3.14
Loopback_EN
Address
0x148E
Access Mode Value At Reset Nominal Value
R/W
0x00
Bit 7
Bit 6
* Blocked
RESERVED
(for test modes)
Bit 5
RESERVED
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Blocked
Blocked
Blocked
RESERVED
Loopback_EN
(for test modes) (for test modes) (for test modes)
Loopback_EN =1, loopback behind the side tone function in the transmitting (PCM_IN) path.
* Blocked (for test modes) must be set to 1.
12.3.15
Specified Register
Address
0x148F
Access Mode Value At Reset Nominal Value
R/W
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Blocked (for test modes)
12.3.16
Connect1 ~ ToneEna1
Address
Access Mode
0x1490 ~ 0x149C
R/W
The functions are the same as channel 0.
Value At Reset Nominal Value
0x00
12.3.17
Connect2 ~ ToneEna2
Address
Access Mode Value At Reset Nominal Value
0x14A0 ~ 0x14AC
R/W
0x00
The functions are the same as channel 0.
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Publication Release Date: May, 2007
Revision 1.3