參數(shù)資料
型號: QL82SD-PB516
廠商: Electronic Theatre Controls, Inc.
英文描述: 10 High Speed Bus LVDS Serial Links bandwidth up to 5 Gbps
中文描述: 10高速總線LVDS串行鏈路的帶寬高達5Gbps的
文件頁數(shù): 40/60頁
文件大?。?/td> 3838K
代理商: QL82SD-PB516
www.quicklogic.com
2002 QuickLogic Corporation
QL82SD Device Data Sheet Rev C
Preliminary
40
Dedicated Clock
There is one dedicated clock in QuickSD devices. It connects to the clock input of the
SuperCell, I/O, and RAM registers through a hardwired connection and is multiplexed with
the programmable clock input. There are four inversions from pad to register inputs and the
dedicated clock takes on the same configuration as the global clock. The dedicated clock
provides a fast global network with low skew. You can select either the dedicated clock or the
programmable clock;
Figure 50
gives the dedicated clock circuitry within the logic cell.
Figure 50: Dedicated Clock Circuitry
The performance of the dedicated clock is given in
Table 32
Table 32: Dedicated Clock Performance
Clock Performance
TT, 25C, 2.5 V
Global
Dedicated
Macro (rear)
1.51
1.59
I/O (far)
2.06
1.73
Skew
0.55
0.14
Programmable clock
Hard-wired clock
CLK
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