RE: [Balloon] Re: Processor update to XScale

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Author: David Bisset
Date:  
To: 'Balloon'
Subject: RE: [Balloon] Re: Processor update to XScale
>.... Perhaps any spare space would be better spent on a
>second CF socket?


>Steve


On a "string" would be better than on the board. Getting component
clearance on an attached board (via the bus connector) for the existing
CF socket is annoying (but necessary) even with the -03- connectors at
11mm clearance.

A second CF on the board would be unlikely to clear components on
existing daughter boards unless it were on the top side, which would
probably create other difficulties.

Implicit in the design of Balloon 2.0x is a 3D board envelope
encompassing the CF socket and other connectors. If Balloon 3.xx is to
meet its objective of being a plug in replacement for 2.0x then this
envelope needs to be kept.

Having the CF socket covering chips (as it does on 2.0x) also creates
assembly and debug difficulties, it would be a shame to make this worse.

David



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