[SI-LIST] RTL8100BL and MINI PCI 124 ibis models
- From: "race" <rrepollo@xxxxxxxxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Mon, 21 Nov 2005 09:55:44 +0800
Hi there!
could someone help me in finding ibis models for rtl8100bl and mini pci 124.
if i had to find alternative models how would i do that?
please advise.
thank you
regards,
----- Original Message -----
From: "Qiu, Peter (GE Consumer & Industrial, consultant)" <peter.qiu@xxxxxx>
To: <si-list@xxxxxxxxxxxxx>
Sent: Friday, November 18, 2005 11:31 PM
Subject: [SI-LIST] SDRAM read problem
> Hi,=20
>
> I have a embedded system with a microprocessor, a SDRAM(SDR), and a bus =
> transceiver chip reside on the data bus(behind the bus transceiver, =
> there are other peripherals). They are in daisy-chain mode, i.e. the =
> data bus signals from microprocessor first reach the SDRAM, then go to =
> the bus transceiver. I put the termination resistors close to the =
> microprocessor side. During the write operation to the SDRAM, the signal =
> quality is ok. While during the read from the SDRAM, the signal on the =
> microprocessor side suffers excessive overshoot and undershoot. May I =
> know what is the better solution to terminate this kind of bi-direction =
> bus? if I also put the termination resistor near the SDRAM end, does it =
> affect the read/write operation to the transceiver chip behind the =
> SDRAM? Thanks.
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