SDRAM DIMM presence detect interface

Details SDRAM DIMM presence detect interface SDRAM DIMM presence detect interface

1995-12-22

1999-01-19

Palys, Joseph

395284, 395836, 395833, G06F 1100

Patent

active

058623205

ABSTRACT:
A keyboard controller is used to drive the PDEN pins on DIMMs. A PC has a keyboard controller with a plurality of programmable input/output (I/O) pins. The state of the programmable I/O pins can be set by software. The pins are coupled to individual PDEN pins on the DIMMs. When the programmable I/O pins are activated, the PDEN pins are driven active and each DIMM outputs a signal indicating its characteristics. The signals are latched and stored for use by a memory controller.

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