Chapter 9 Asynchronous Sequential Logic
19-1Chapter 9AsynchronousSequential Logic9-2Outline Asynchronous Sequential Circuits Analysis Procedure Circuits with Latches Design Procedure Reduction of State and Flow Tables Race-Free State Assignment Hazards Design Example29-3Sequential 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 difference9-4Synchronous 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
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
Download Chapter 9 Asynchronous Sequential Logic
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: