T8531TLDB Agere Systems, Inc., T8531TLDB Datasheet - Page 34

• 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 19. T8531 Time-Slot Assignment Memory Map
All registers can be written by the microprocessor interface.
Table 20A. Bit Map for T8531 Time-Slot Assignment Registers at 0x1400—0x140F
Table 20B. Bit Map for CTZ Disable and Null Channel
Notes:
X = Don’t care.
Bits 4 and 5 default to 1 upon reset.
34
Not used
15—6
Bit 5
X
X
0
1
Address Range
CTZ disable
0x140C
0x140D
0x140A
0x140B
0x140E
0x140F
0x1400
0x1401
0x1402
0x1403
0x1404
0x1405
0x1406
0x1407
0x1408
0x1409
5
(continued)
Bit 4
X
X
0
1
Null channel
4
Bit Number and Function
Time slot 0 channel assignment
Time slot 1 channel assignment
Time slot 2 channel assignment
Time slot 3 channel assignment
Time slot 4 channel assignment
Time slot 5 channel assignment
Time slot 6 channel assignment
Time slot 7 channel assignment
Time slot 8 channel assignment
Time slot 9 channel assignment
Time slot 10 channel assignment
Time slot 11 channel assignment
Time slot 12 channel assignment
Time slot 13 channel assignment
Time slot 14 channel assignment
Time slot 15 channel assignment
3
Binary-coded channel number 0—15
Disables null pointer
Nulls channel
Disables CTZ
Enables CTZ
Memory Contents
2
Function
1
Agere Systems Inc.
February 2002
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