MT90866 View Datasheet(PDF) - Zarlink Semiconductor Inc

Part Name

Description

Manufacturer

MT90866

Flexible 4 K x 2.4 K Channel Digital Switch with H.110 Interface and 2.4 K x 2.4 K Local Switch

Zarlink Semiconductor Inc 

MT90866

Data Sheet

Bit

Name

Description

7-0

(See

Note 1)

LCAB7 -

LCAB0

Source Channel Address Bits: These eight bits refer to the number of the channel that

is the source (local or backplane) connection.

Note 1: Only Bits 7-0 will be used for per-channel message mode for the local STo streams.

Table 29 - Local Connection Memory Low Bits (continued)

Data Rate

Source Stream

LSAB Bit Usage

LCAB Bit Usage

8 Mb/s

STio0-31

LSAB4-0

LCAB6-0 (128-ch/frame)

16 Mb/s

STio0-15

LSAB3-0

LCAB7-0 (256 ch/frame)

Table 30 - LSAB and LCAB Bits Usage when Source Streams are from the Backplane Port

Data Rate

Source Stream

LSAB Bit Usage

LCAB Bit Usage

2 Mb/s

STi0-27

LSAB4-0

LCAB4-0 (32-ch/frame)

4 Mb/s

STi0-18

LSAB4-0

LCAB5-0 (64-ch/frame)

8 Mb/s

STi0-18

LSAB4-0

LCAB6-0 (128-ch/frame)

2-bit subrate

STi0-15

LSAB3-0

LCAB6-0 (128 ch/frame)

4-bit subrate

STi0-15

LSAB3-0

LCAB5 -0 (64 ch/frame)

Note: When operating at 4Mb/s or 8Mb/s, STo19-27 are driven low.

Table 31 - LSAB and LCAB Bits Usage when Source Stream are from the Local Port

66

Zarlink Semiconductor Inc.

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