参数资料
型号: ORT8850L-3BM680C
厂商: Lattice Semiconductor Corporation
文件页数: 25/105页
文件大小: 0K
描述: IC FPSC TRANSCEIVER 8CH 680-BGA
产品变化通告: Product Discontinuation 01/Aug/2011
标准包装: 24
系列: *
Lattice Semiconductor
ORCA ORT8850 Data Sheet
26
Byte Ordering in SONET Frames
The ORT8850 expects byte ordering in the SONET frames to be in the standard byte interleaved format per the
GR-253 SONET standard. Byte ordering is the same in both the transmit and receive direction and treats the data
as multiple STS-1 frames. When using the ORT8850 in STS-3 format both the transmitter and receiver device must
be framed, based on STS-3 format. Likewise for the STS-12 format, both must operate in STS-12 format.
Table 6. Byte Ordering, STS-3 Format
Table 7. Byte Ordering, STS-12 Format
STS-3 A -->
3
2
1
STS-3 B -->
3
2
1
STS-3 C -->
3
2
1
STS-3 D -->
3
2
1
STS-12 A -->
12
9
6
3
11
8
5
2
10
7
4
1
STS-12 B -->
12
9
6
3
11
8
5
2
10
7
4
1
STS-12 C -->
12
9
6
3
11
8
5
2
10
7
4
1
STS-12 D -->
12
9
6
3
11
8
5
2
10
7
4
1
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