Transcription of Chapter 9 Asynchronous Sequential Logic
{{id}} {{{paragraph}}}
19-1 Chapter 9 AsynchronousSequential Logic9-2 Outline Asynchronous Sequential Circuits Analysis Procedure Circuits with Latches Design Procedure Reduction of State and Flow Tables Race-Free State Assignment Hazards Design Example29-3 Sequential Circuits Consist of a combinational circuit to which storage elements are connected to form a feedback path Specified by a time sequence of inputs, outputs, and internal states Two types of Sequential circuits: synchronous Asynchronousprimary difference9-4 synchronous vs. Asynchronous Asynchronous Sequential circuits Internal states can change at any instantof time when there is a change in the input variables No clocksignal is required Have better performance but hard to design due to timing problems synchronous Sequential circuits Synchronized by a periodictrain of clock pulses Much easier to design(preferred design style)39-5 Why Asynchronous Circuits ?
Synchronous Asynchronous primary difference 9-4 Synchronous vs. Asynchronous Asynchronous sequential circuits Internal states can change at any instantof time when there is a change in the input variables No clocksignal is required Have better performance but hard to design due to timing problems Synchronous sequential circuits
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document:
{{id}} {{{paragraph}}}