W681307DG Datasheet, PDF (84/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM.

W681307
12.3.9
ToneFreqB0
Address
0x1489
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
ToneFreqB
Frequency of tone B = ToneFreqB * 15.625 (Hz)
12.3.10
ToneVolA0
Address
0x148A
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 ToneVolA[4] ToneVolA[3] ToneVolA[2] ToneVolA[1] ToneVolA[0]
Tone level is listed as below Table 12-3 for tone generator A.
12.3.11
ToneVolB0
Address
0x148B
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 ToneVolB[4] ToneVolB[3] ToneVolB[2] ToneVolB[1] ToneVolB[0]
Tone level is listed as below Table 12-3 for tone generator B.
12.3.12
ToneEna0
Address
0x148C
Access Mode Value At Reset Nominal Value
R/W
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED
Bit 1
Tx_tone
Bit 0
Rcv_tone
Rcv_tone
=1, add tone generators to the receiving (PCM_OUT) path. Receive tones are added just before the PCM output gain
stage.
Tx_tone
=1, add tone generators to the transmitting (PCM_IN) path. Transmit tones are added just after the PCM input gain
stage.
WARNING: enabling tones in both directions at the same time causes the output frequencies to double.
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Publication Release Date: May, 2007
Revision 1.3