Serial Presence Detect ==>
presence detect
<storage> A means of identifying a memory chip to the memory controller
logic. The original scheme, called Parallel Presence Detect (PPD) used a
separate pin for each bit of information. As the number of pins can not be very
large this only allowed to identify the density and the speed of the chips. To
allow for additional information the Serial Presence Detect (SPD) scheme was
introduced which uses a serial EEPROM to store the presence detect information
and requires only two pins (one for enabling it and one for data).
(1998-03-07)
Nearby terms:
prepend « preprocessor « pre-sales support rep «
presence detect » presentation layer »
Presentation Manager » prestidigitization
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