The Student's Guide to VHDL
Elsevier Science, 1998. gada 15. janv. - 336 lappuses
VHDL is a language for describing digital electronic systems. A vital, efficient step in the system design process, VHDL allows for the design and simulation of a hardware system prior to it actually being manufactured.
Offering the same clear, accessible style as The Designer's Guide to VHDL, The Student's Guide is designed as a main text for introductory VHDL courses, and as a supplementary text for courses that require VHDL-based project work, such as computer architecture, digital design, and digital logic courses. This new condensed text also serves as a quick, self-teaching guide for practicing engineers who need to learn only the basics of VHDL.
1.3. rezultāts no 37.
However , with the clear input present , the process must be sensitive to changes
on both clk and clr at any time . Hence it uses the ' event attribute to distinguish
between clk changing to ' l ' and clr going back to ' O ' while clk is stable at ' l ' .
This style of wait statement is useful in a process that models a block of
combinatorial logic , since any change on the ... This means that it will resume on
changes on either data input , even though only one of them is selected at any
In this model the output follows any changes in the input , but delayed by 500 ps .
If the input changes twice or more within a period shorter than 500 ps , the
scheduled transactions are simply queued by the driver until the simulation time
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