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介绍XC3000 XC3100中的多路复用器和桶型移位器
消耗积分:5 |
格式:rar |
大小:330 |
2009-05-13
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Since the function generator in the XC3000 series CLB
has only five inputs, it cannot directly implement a fourinput
multiplexer, which requires four data inputs and two
select inputs. The CLB does, however, have the logic
capability to implement a 4-input multiplexer.
This applications shows how to access the full logic capability
of the CLB for 4-input multiplexers. It also shows
how best to implement larger multiplexers and barrel
shifters.
has only five inputs, it cannot directly implement a fourinput
multiplexer, which requires four data inputs and two
select inputs. The CLB does, however, have the logic
capability to implement a 4-input multiplexer.
This applications shows how to access the full logic capability
of the CLB for 4-input multiplexers. It also shows
how best to implement larger multiplexers and barrel
shifters.
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