參數(shù)資料
型號: ZL50012
廠商: Zarlink Semiconductor Inc.
英文描述: Flexible 512-ch Digital Switch
中文描述: 靈活的512通道數(shù)字開關(guān)
文件頁數(shù): 20/65頁
文件大小: 1145K
代理商: ZL50012
ZL50012
Data Sheet
23
Zarlink Semiconductor Inc.
2.3.3 Fractional Input Bit Delay Programming
In addition to the input bit delay feature, the device allows users to change the sampling point of the input bit. By
default, the sampling point is at 3/4 bit. Users can change the sampling point to 1/4, 1/2, 3/4 or 4/4 bit position by
programming Bit 3 and 4 of the Stream Input Control Registers (SICR).
Figure 16 - Input Bit Delay Timing Diagram
2.3.4 Output Channel Delay Programming
This feature allows each output stream to have a different output frame boundary with respect to the output frame
boundary defined by the output frame pulse (FPo0, FPo1 and FPo2) and the output clock (CKo0, CKo1 or CKo2).
By default, all output streams have zero channel delay such that Ch 0 is the first channel that appears after the
output frame boundary as shown in Figure 17. Different output channel delay can be set by programming Bit 5 to 11
in the Stream Output Offset Registers (SOOR). The output channel delay can vary from 0 to 31, 0 to 63 and 0 to
127 for the 2.048 Mb/s, 4.096 Mb/s and 8.192 Mb/s modes respectively.
Figure 17 - Output Channel Delay Timing Diagram
FPi
7
2
3
4
5
6
1
0
STi
X
Bit Delay = 0
(Default)
Ch0
7
4
5
6
Ch1
2
3
1
0
7
2
3
4
5
6
1
0
STi
X
Bit Delay = 1
Ch0
7
5
6
Ch1
2
3
1
0
Last Channel
Last Channel
Bit Delay = 1
Note: Last Channel = 31, 63, 127 for 2.048 Mb/s, 4.096 Mb/s and 8.192 Mb/s mode respectively
Input Frame Boundary
Note:
X
= 0 to 15
4
FPo
7
2
3
4
5
6
1 0
Channel Delay = 0
Ch 0
7
2
3
4
5
6
1 0
Ch 1
2
3
1 0
7
2
3
4
5
6
1 0
Last Channel
2
3
4
5
6
1 0
Last Channel -1
7 6
7
2
3
4
5
6
1 0
Channel Delay = 1
Last Channel
7
2
3
4
5
6
1 0
Ch 0
2
3
1 0
7
2
3
4
5
6
1 0
Last Channel -1
2
3
4
5
6
1 0
Last Channel -2
7 6
7
2
3
4
5
6
1 0
Channel Delay = 2
Last Channel -1
7
2
3
4
5
6
1 0
Last Channel
2
3
1 0
7
2
3
4
5
6
1 0
Last Channel -2
2
3
4
5
6
1 0
Ch0
7 6
(Default)
Delay = 1
Delay = 2
7
STo
X
STo
X
STo
X
Note: Last Channel = 31, 63, 127 for 2.048 Mb/s, 4.096 Mb/s and 8.192 Mb/s mode respectively
Output Frame Boundary
Note:
X
= 0 to 15
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