Subject: Re: [IBIS-Users] ODT(On-Die-Termination) modeling ?
From: Syed Huq (shuq@cisco.com)
Date: Wed Jan 22 2003 - 18:20:30 PST
Yes, IBIS supports this feature.
You create "two" models. One 'with termination' and the other 'without
termination'. THen use the [Model Selector] option to choose which
one you wish to use for simulations.
Syed
>From: "Jongho Kang" <jongho.kang@hynix.com>
>To: <ibis-users@eda.org>
>Subject: [IBIS-Users] ODT(On-Die-Termination) modeling ?
>Date: Thu, 23 Jan 2003 09:10:25 +0900
>MIME-Version: 1.0
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>
>DDR2 Dram has on-die-termination resistor.
>The ODT feature is designed to improve signal integrity
>of the memory channel by allowing the DRAM controller
>to independently turn on/off termination resistance for
>any or all DRAM device.
>Turning on/off termination resistance changes I/O buffer's
>I/V characteristics & rising/falling waveform.
>Does IBIS support ODT function?
>If not, how can I make I/O buffer IBIS including ODT function?
>Any comment will be appreciated.
>
>Thanks.
>
>====================================
>Jongho Kang
>E-mail : jongho.kang@hynix.com
>Office : 82-31-639-1675/1971
>Mobile : 82-18-221-7806
>Product Application Engineering,
>Memory R&D, Hynix Semiconductor Inc.
>====================================
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