ocx160 ETC-unknow, ocx160 Datasheet - Page 10

• Manufacturer Part Number: ocx160
• Description: Ocx160 Crosspoint Switch
• Manufacturer: ETC-unknow

OCX160 Crosspoint Switch—Preliminary Data Sheet
10
The advantages of next neighbor clocking are:
Only OUT1 can neighbor with OUT0, OUT3 with OUT2, etc. OUT2 cannot neighbor with OUT1,
or OUT4 with OUT3, etc.
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.
Any Input
Any Input
Output Next Neighbor Pairs
(INx)
(INy)
Port
Port
1. Using next neighbor clocking in the registered output (RO) mode helps reduce the
2. For a design with a large number of outputs switching simultaneously, next neighbor
skew in outgoing data.
clocking mode is useful to stagger outputs for reduced board noise caused by
simultaneous switching outputs.
Crosspoint
Array
Figure 4
Pairing Sequence for Neighboring Outputs
Table 2
[Rev. 1.6] 2/20/01
Neighbor
Neighbor
Next Neighbor Clock Block Diagram
0,1
Next
Next
CLK
CLK
Next Neighbor Outputs
Select
Select
2,3
Clock
Clock
4,5
D
D
6,7
Q
Q
Output Mode
Output Mode
8,9
Select
Select
OE#
OE#
76,77
78,79
OUT0
OUT1
I-Cube, Inc.