[SI-LIST] Re: Bus Transceivers & Termination Resistors

  • From: steve weir <weirsi@xxxxxxxxxx>
  • To: hotacr@xxxxxxxxxxxxxxx, <si-list@xxxxxxxxxxxxx>
  • Date: Tue, 22 Mar 2005 06:48:37 -0800

Chinmoy, I really do not know what to tell you.  With a two week deadline, 
many tasks to undertake, and apparently few of the needed skills, your odds 
of success are poor.  Why hasn't your manager assigned a more experienced 
engineer to be responsible for this project and teach you?  Maybe you can 
get some help from the local Motorola applications staff.

Steve.
At 07:19 PM 3/22/2005 +0530, Chinmoy Raj H wrote:
>Hi all,
>
>This is the first time I am mailing to the group.
>May be my mail is quiet long and the questions also very simple.
>But just wanted to get my doubts cleared. Hence, thought to take help of =
>you all.
>
>Is it really required to use Bus Transceivers on the Address and DataBus
>lines of the Processor ?
>I had done that for coldfire mcf5272 working at 66MHz, sdram also at
>66mhz. The eval board suggested that to use.
>The dev board for Blackfin from ADI (BF533 - internal core working at
>400MHz and greater), SDRAM at 133MHz=20
>has not used any Bus transceivers...
>I was wondering to use them or not for my processor bf531(lower subset of
>bf533).=20
>
>Also I had used Terminations Resistors on the address and data bus lines
>for the coldfire.
>but they hav not been used in bf533 dev board....
>I was again wondering...
>
>wat do you say.... aren these necessary for high speed design ?
>
>any other doc u have which suggests on general care that need to be
>taken for high speed desgin.
>ya, i know the book "blackmagic"....
>i am going thro it... but quiet difficult to undetrstand and also inneed
>to completye the design in two weeks time..
>hence was wondering if i get some general pdf explainign general care to
>be taken for high speed design.
>becos now my board based on bf531 will be working literally on 133mhz
>(sdram) albeit core is at 400mhz.
>
>regards,
>chinmoy,
>
>
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