presence detect

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(storage)

presence detect - 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).

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No references found			62 Gbps per lane * Analog video output - Triple 8-bit Digital-to-Analog - Converter (DAC) - VSYNC and HSYNC outputs - Up to 240 MHz pixel clock * Auxiliary (AUX) channel - Supports IUC over AUX - Supports MCCS, DDC-CI and DDC protocols * Monitor presence detect * Supports low power mode * Single 3. NXP Expands DisplayPort[TM] Portfolio with VGA Interface Enabling ... by Business Wire Shipping immediately in 4GB memory kits, the HyperX([R]) PC2-6400 CL4 SO-DIMMs offer the additional benefit of Serial Presence Detect (SPD) capabilities to provide performance benefits to a wider array of notebooks. Kingston Technology First to Launch High Performance Ultra ... by Business Wire NASDAQ: MCHP), a leading provider of microcontroller and analog semiconductors, today announced a series of Serial Presence Detect (SPD) EEPROM devices that support the latest Double Data Rate 2 (DDR2) DIMM modules used in today's high-speed PCs, as well as future DDR3 DIMM modules. Microchip Technology Unveils SPD EEPROMs for DDR2 & DDR3 DIMM Modules by Business Wire			Presbyterianism Presbyterians presbyterium Presbytery prescaler preschool education Preschool Institutions Preschool Pedagogy Prescott Prescott National Forest Prescott, Edward C. Prescott, Samuel Prescott, Samuel Cate Prescott, William Prescott, William H Prescott, William H. Prescott, William Hickling Prescription prescriptive specification prescriptivism prescutum preselection preselector presence presence chamber presence detect presence room Presenile Psychoses presensitized plate present angular height present elevation present position present range present value present-worth factor presentation presentation graphics presentation graphics program presentation layer presentation logic Presentation Manager Presentation mode presentation services protocol Presentism presentment Preseren, France preservation Preservation Action Preservation of Historical and Cultural Treasures preservative Preserve			presells PRESENCCIA presence presence presence presence presence Presence (album) Presence (album) Presence (album) Presence (album) Presence (band) Presence (Led Zeppelin) Presence (Led Zeppelin) Presence (Led Zeppelin) Presence (Led Zeppelin) presence 1 presence 2 Presence Advanced Services for Telco Applications Presence and Age of Own Children Presence and Age of Own Children, Females Presence and Availability Management Presence and Availability Management Forum Presence and Availability Management Working Group Presence and Availability Server Presence and Interworking Mobility presence chamber presence chamber presence chambers presence chambers presence detect Présence et Action Culturelles Presence From Innovation LLC Presence Function presence in court Presence in Search Area Presence Information Data Format Presence Information Protocol Presence Information Transfer Protocol presence of mind presence of mind presence of mind presence of mind Presence on the Net of Deists for Enlightenment and Reason Presence or Absence of Coexistent Vasopressin Precursor presence room presence room presence technology presence technology presence technology presence technology Presence, Real Presence, Real Presence-Absence Test Presence-Sensing Device Initiation presences presences presences presences presences presenile

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