Reading SDRAM Memory Configuration via EEPROM on SIMM

2 messages, 2 authors, 2001-11-16 · open the first message on its own page

Reading SDRAM Memory Configuration via EEPROM on SIMM

From: James F Dougherty <hidden>
Date: 2001-11-16 05:24:18

Does anyone know how to read an SDRAM SIMM EEPROM
to get the memory configuration data? I remember
there was a spec for this ... forgot the name...

You basically read I2C data bytes from an EEPROM
in a standard format.... PC's do this to find memory
settings..


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Re: Reading SDRAM Memory Configuration via EEPROM on SIMM

From: Peter Barada <hidden>
Date: 2001-11-16 14:58:09

Does anyone know how to read an SDRAM SIMM EEPROM
to get the memory configuration data? I remember
there was a spec for this ... forgot the name...
Its called "Serial Presence Detect", and you can find the spec at:

http://developer.intel.com/technology/memory/pc133sdram/spec/spdsd12b.htm

--
Peter Barada                                   Peter.Barada@motorola.com
Wizard                                         781-852-2768 (direct)
WaveMark Solutions(wholly owned by Motorola)   781-270-0193 (fax)

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