參數(shù)資料
型號: OCX160
廠商: Electronic Theatre Controls, Inc.
英文描述: OCX160 Crosspoint Switch
中文描述: OCX160交叉點開關
文件頁數(shù): 10/44頁
文件大小: 710K
代理商: OCX160
OCX160 Crosspoint Switch
Preliminary Data Sheet
10
[Rev. 1.6] 2/20/01
I-Cube, Inc.
Figure 4
Next Neighbor Clock Block Diagram
The advantages of next neighbor clocking are:
1.
Using next neighbor clocking in the registered output (RO) mode helps reduce the
skew in outgoing data.
2.
For a design with a large number of outputs switching simultaneously, next neighbor
clocking mode is useful to stagger outputs for reduced board noise caused by
simultaneous switching outputs.
Note
Selecting the next neighbor clock for both outputs at the same time is not recommended.
Only one output in the pair at a time can be clocked by its next neighbor.
Only OUT1 can neighbor with OUT0, OUT3 with OUT2, etc. OUT2 cannot neighbor with OUT1,
or OUT4 with OUT3, etc.
Table 2
Next Neighbor Outputs
Pairing Sequence for Neighboring Outputs
Output Next Neighbor Pairs
0,1
2,3
4,5
6,7
8,9
76,77
78,79
CLK
D
Q
Next
Neighbor
OUT0
OE#
Crosspoint
Array
CLK
D
Q
Next
Neighbor
OE#
OUT1
Clock
Select
Clock
Select
Output Mode
Select
Output Mode
Select
Any Input
Port
(IN
x
)
Any Input
Port
(IN
y
)
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