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在LCA(逻辑单元阵列)器件中使用状态机
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2009-05-15
王磊
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State-machine methodology defines the contents of every
flip-flop in a design under every circumstance that might
arise. It also defines all the possible transitions that can
cause the design to go from one of these states to another.
In its simplest form, this is just a rigorous way of designing
synchronous logic, like 4-bit counters. For more complex
designs, the state-machine approach gives the designer a
tool to analyze all possible operating conditions, and so
avoid overlooked hang-up states or undesired transitions.
LCA devices with their abundance of flip-flops lend themselves
well to state-machine designs.
flip-flop in a design under every circumstance that might
arise. It also defines all the possible transitions that can
cause the design to go from one of these states to another.
In its simplest form, this is just a rigorous way of designing
synchronous logic, like 4-bit counters. For more complex
designs, the state-machine approach gives the designer a
tool to analyze all possible operating conditions, and so
avoid overlooked hang-up states or undesired transitions.
LCA devices with their abundance of flip-flops lend themselves
well to state-machine designs.
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