T8531TLDB Agere Systems, Inc., T8531TLDB Datasheet - Page 38

• Manufacturer Part Number: T8531TLDB
• Description: CODEC, AMuLaw CODEC, Line Card Signal Processor for CODEC Chip Set, 64TQFP
• Manufacturer: Agere Systems, Inc.

Codec Chip Set
Software Interface
Table 30. Bit Map for T8532 Channel Control Register 2 at 0x1518—0x151F and 0x1558—0x155F
Notes:
SUSEQ = 0: normal operation.
SUSEQ = 1: start-up calibration sequence.
Table 31. T8532 Control Register 2: Receive Gain
Table 32. T8531 Control Register Map
Note: A board control word controls a function that is common to all 16 channels of a given chip set.
38
RXGAIN2
Not used
15—8
Bit 2
0
0
0
0
1
1
1
1
Address Range
0x1FFE
0x1FFC
0x1FFA
0x1FF8
0x1FF6
RXGAIN1
SUSEQ
(continued)
Bit 1
7
0
0
1
1
0
0
1
1
Not used
Bit Number and Function
RXGAIN0
Board control word 1
Board control word 2
Board control word 3
Board control word 4
Board control word 5
Register Contents
6—3
Bit 0
0
1
0
1
0
1
0
1
2
Termination Impedance Is On
–12.04 dB receive gain
–12.04 dB receive gain
Write by Microprocessor Interface
–3.01 dB receive gain
–6.02 dB receive gain
–9.03 dB receive gain
6.02 dB receive gain
3.01 dB receive gain
0.0 dB receive gain
Mode TLP Levels,
Receive gain
1
Y
Y
Y
Y
Y
Agere Systems Inc.
February 2002
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