108296138 View Datasheet(PDF) - Agere -> LSI Corporation

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108296138

AmbassadorTM T8100A, T8102, and T8105 H.100/H.110 Interface and Time-Slot Interchangers

Agere -> LSI Corporation 

Advance Data Sheet

November 1999

Ambassador T8100A, T8102, and T8105

H.100/H.110 Interfaces and Time-Slot Interchangers

2 Architecture and Functional Description (continued)

2.2 Local Bus Section (continued)

2.2.3 Data Rates and Time-Slot Allocation (continued)

STREAM STREAM

0—3

4—7

STREAM STREAM

8—11

12—15

STREAM STREAM

0—3

4—7

STREAM STREAM STREAM

8—11

12—15

12—15

TIME SLOT 0

TIME SLOT 1

TIME SLOT 2

TIME SLOT 0 TIME SLOT 0

TIME SLOT 1 TIME SLOT 1

TIME SLOT 2 TIME SLOT 2

TIME SLOT 0

(USED FOR GROUP C)

TIME SLOT 1

TIME SLOT 0 TIME SLOT 0 TIME SLOT 1

TIME SLOT 1 TIME SLOT 2 TIME SLOT 3

TIME SLOT 2 TIME SLOT 4 TIME SLOT 5

64 TIME SLOTS

GROUP A,

ALL

TIME

SLOTS

GROUP

B,

ALL

TIME

SLOTS

GROUP

C,

ALL

TIME

SLOTS

64 TIME SLOTS

GROUP A,

ALL

TIME

SLOTS

GROUP

B,

ALL

TIME

SLOTS

GROUP

C,

EVEN

TIME

SLOTS

GROUP A AT 4.096 Mbits/s

GROUP B AT 4.096 Mbits/s

GROUP C AT 4.096 Mbits/s

GROUP A AT 2.048 Mbits/s

GROUP B AT 4.096 Mbits/s

GROUP C AT 8.192 Mbits/s

Figure 7. Local Memory (T8100A, T8105 Only), Fill Patterns (continued)

5-6106F

In any of the parallel modes (S/P, P/S, P/P), the local memories (T8100A, T8105 only) treat parallel data as a

series of sequential time slots (i.e., all one stream): 8.192 Mbits/s corresponds to 1024 time slots, 4.096 Mbits/s

corresponds to 512 time slots, and 2.048 Mbits/s corresponds to 256 time slots. The memory locations are

scanned in order from 0 to 1023 at 8.192 Mbits/s, even locations are scanned at 4.096 Mbits/s (odd locations are

skipped), and at 2.048 Mbits/s, every second even location is scanned.

Lucent Technologies Inc.

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