Hi Tom, I understand your point but what if I have some buffers taking supply from DVDD and some from AVDD, but they are all modeled in the same IBIS file? There is no control for me to state in which case I should connect the power to AVDD and which case to connect to DVDD in the .s2i file. Thank you. Best regards, Mei Yee SID, Avago Technologies (Malaysia) Tel no.:604-6108515 ________________________________ From: Tom Dagostino [mailto:tom@teraspeed.com] Sent: Thursday, November 09, 2006 6:49 PM To: NG,MEI-YEE; 'Ambrish Varma'; ibis-users@server.eda.org Subject: RE: [IBIS-Users] IBIS dual power supply When doing an IBIS model the supply of concern is the one connected to the I/O buffer. Tom Dagostino Teraspeed(R) Labs 13610 SW Harness Lane Beaverton, OR 97008 503-430-1065 tom@teraspeed.com www.teraspeed.com Teraspeed Consulting Group LLC 121 North River Drive Narragansett, RI 02882 401-284-1827 -----Original Message----- From: owner-ibis-users@server.eda.org [mailto:owner-ibis-users@server.eda.org] On Behalf Of NG,MEI-YEE Sent: Thursday, November 09, 2006 12:41 AM To: Ambrish Varma; ibis-users@server.eda.org Subject: [IBIS-Users] IBIS dual power supply Hi experts, Need your guidance in a simple question. My chip has dual power supply, meaning AVDD and AGND for analog core and DVDD and DGND for digital core. In the .s2i file Pin List, I specify each to be POWER and GND model accordingly. But when I run the s2ibis3, it will only connect a voltage source to AVDD and not to both the VDD. How do I specify the pin list for this case? Thank you. Best regards, Mei Yee -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis <optional e-mail address, if different> | subscribe ibis-users <optional e-mail address, if different> | unsubscribe ibis <optional e-mail address, if different> | unsubscribe ibis-users <optional e-mail address, if different> | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993Received on Thu Nov 9 15:31:13 2006
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