In terms of schematics...
On the first page there is a big block diagram of the functionality.
Each "block" can then be pushed into, to reveal greater levels of detail
down to the part level.
This can be helpful where a page can be copied around for duplicate
circuits.
For example 8 IO pages that represent 8 identical channels.
We also use the same concept for Altera and Xlinix designs. Big overview,
push in for details.
The only draw back from a PCB designers viewpoint is that often there is
"mapping" of signal names. Such that on one page the signal is "x" and then
as that signal goes into another block, it may become signal y, with the top
block controlling the final name, "z". You didn't want to know that.
Hope this helps,
Dave
Stadem, Richard wrote:
>I believe you are referring to the overall Design Engineering hierarchy
>for a given product. The design hierarchy consists of the configuration
>management system; the control over the revisions of the BOM, Assembly
>Drawings, Schematics, Engineering change control, software revisions,
>etc, of the top-end product (finished) and going on down to the circuit
>cards, the components, the pwb, etc.
>
>-----Original Message-----
>From: TechNet [mailto:[log in to unmask]] On Behalf Of Deac Descoteaux
>Sent: Tuesday, December 06, 2005 1:21 PM
>To: [log in to unmask]
>Subject: [TN] question
>
>Could someone give me "The Reader's Digest" version of "what is a
>hierarchical Design is????
>
>
>
>Thanks,
>
>Deac
>
>
>
>
>
>Deac Descoteaux
>
>
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