T8531A/T8532 Agere Systems, Inc., T8531A/T8532 Datasheet - Page 37
T8531A/T8532
Manufacturer Part Number
T8531A/T8532
Description
Multichannel Programmable Codec Chip Set
Manufacturer
Agere Systems, Inc.
Datasheet
1.T8531AT8532.pdf
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May 2001
Software Interface
Table 23. Bit Map for T8532 Powerup/Powerdown Registers at 0x1500—0x1507 and 0x1540—0x1547
Notes:
PWR = 0: powerdown.
PWR = 1: powerup—normal operation.
Table 24. Bit Map for T8532 Channel Control Register 1 at 0x1508—0x150F and 0x1548—0x154F
Table 25. T8532 Control Register 1: Transmit Gain
Table 26. T8532 Control Register 1: Analog Termination Impedance
Agere Systems Inc.
PWR
TXGAIN2
15
Bit 4
TI3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Bit 7
0
0
0
0
1
1
1
1
Not used
14—8
Bit 3
TI2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
TXGAIN1
Bit 6
PWR
(continued)
0
0
1
1
0
0
1
1
15
7
Bit 2
TI1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
TX gain
6
TXGAIN0
Bit Number and Function
Bit Number and Function
Bit 5
0
1
0
1
0
1
0
1
Bit 1
TI0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
5
Gain (See equation on page 13.)
4
12.04 dB transmit gain
12.04 dB transmit gain
12.04 dB transmit gain
12.04 dB transmit gain
3.01 dB transmit gain
6.02 dB transmit gain
9.03 dB transmit gain
0 dB transmit gain
Termination impedance
0.0000
0.0583
0.1417
0.2250
0.3083
0.3917
0.5000
0.5583
0.6417
0.7083
0.8083
0.8917
0.9750
1.0583
1.2167
2.0000
Mode
3
Not used
14—0
2
Codec Chip Set
1
LPBK
0
37
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