MT90868 Zarlink Semiconductor, Inc., MT90868 Datasheet - Page 14

• Manufacturer Part Number: MT90868
• Description: High Bandwidth Digital Switch - 8,192 x 8,192 channels among local streams and 1,024 x 1,024 channels among two selected backplane streams
• Manufacturer: Zarlink Semiconductor, Inc.

MT90868
14
BSTi/BSTo0-63
LSTi/LSTo0-63
LSTi/LSTo0-63
BSTi/BSTo0-63
LSTi/LSTo0-63
(16.384MHz)
LFP16C = 0
LFP16C = 1
(4.096MHz)
(8.192MHz)
(8.192MHz)
LFP4C = 0
LFP4C = 1
LFP8C = 0
LFP8C = 1
Figure 4 - Backplane and Local Frame Pulse Alignment, Backplane Data Rate is 16Mb/s
Figure 5 - Backplane and Local Frame Pulse Alignment, Backplane Date Rate is 32Mb/s
(16Mb/s)
(8Mb/s)
(32Mb/s)
(8Mb/s)
(8Mb/s)
C8C=0
C8C=1
(8kHz)
FP16o
FP16o
FP8o
FP4o
FP4o
FP8o
FP8o
C16o
FP8i
FP8o
C8o
C4o
C8o
C8o
FP8i
C8i
C8o
C8i
3
2
Ch255
3
Ch 511
1 0
Channel 125
2
2
6
1 0
7
1
5
6
Ch 0
7
Channel 0
5
Channel 126
0
6
4
4
5
Channel 0
3
7
4
3
2
Ch 1
3
1 0
6
2
2
Two (32Mb/s) channels + Ten C8i Cycles
1 0
7
5
6
1
Ch 2
Channel 126
7
Channel 1
5
Figure 6 - Local Port Timing Diagram
Two (16Mb/s) channels + Ten C8i Cycles
4
6
4
0
Channel 1
5
3
3
4
2
7
Ch 3
3
1 0
2
2
6
1 0
Channel 127
7
1
6
5
Ch 4
Channel 2
5
0
4
4
3
7
2
3
Ch 5
1 0
6
6
2
5
Channel 126
7
4
5
6
1
Ch 6
3
Channel 127
Channel 3
5
2
4
4
0
1 0
3
Advance Information
3
2
7
Ch 7
7
1 0
6
2
6
Channel 127
5
7 6
1
Channel 0
4
5
Ch 8
3
Channel 4
5
0
2
4
4
1 0
3
Ch0
7
2
3
7 6
1
1