PC Bus {ISA/XT/EISA Computer Bus connector pin out-Information-IC/Connector Links}

PCI Bus {The Peripheral Component Interface 'PCI' [Parallel] Bus was originally developed as a local bus expansion for the PC. The first version of the PCI bus ran at 33MHz with a 32 bit bus (133MBps), the current version runs at 66MHz with a 64 bit bus. The PCI bus operates either synchronously or asynchronously with the "mother Board bus rate}

PCI-X Bus {The Peripheral Component Interface PCI-X addendum is an enhancement to the 64 bit 66MHz PCI bus specification. The minimum clock speed for PCI-X is 66MHz [PCI-X 66]. Additional bus speeds include: PCI-X 133, PCI-X 266 and PCI-X 533 providing up to 4.3GBps, PCI-X 1066 in the works. PCI-X is backwards compatible with PCI}

PCI Express Bus {Serial PCI Bus uses two low-voltage differential LVDS pairs, at 2.5Gb/s in each direction. Using 8B/10B encoding, and Supporting 1x, 2x, 4x, 8x, 12x, 16x, 32x bus widths. Serial PCI Bus is a point to point serial interface over copper or optical}

PCI-ISA {A passive backplane which moves all active devices off the motherboard and onto a single card. The controller card used in the system has fingers [edge connectors] for both PCI and the ISA bus, the Mother Board only connectors. This allows additional cards to be added to the mother board which use either the ISA or PCI buses. Because only connectors reside on the motherboard, repair time is increased, and down time is decreased. The standard is PICMG-xx. The specification is used in embedded or industrial computer systems, not personal computers.}

PC/104 Bus {PC-104 Embedded Bus: IBM PC XT and AT buses in a different form factor}

PC/104-Plus Bus {PC104-Plus Embedded Bus: IBM PC XT, AT, and PCI bus.}

PCI-104 Bus {Removes the IBM XT, and AT buses from the PC/104, and PC/104-Plus boards, but keeps the same PC104 form factor [board size] leaving only the 33MHz PCI bus.}

PCI/104-Express Bus {Combines the PCI interface and PCIe interface, and keeps the same PC104 form factor [board size], The older XT/AT IBM buses are not included.}

PCIe/104 Bus {A PC/104 board which only includes a PCIe interface, with the PCI interface removed.}

PCMCIA PC Card {Implementation of the 16 bit ISA Bus on a PCMCIA card.}

PCMCIA Cardbus {Implementation the 32 bit PCI bus in a PCMCIA form factor.}

PCMCIA Miniature Card {Miniature Card is a smaller implementation of PCMCIA. Miniature Cards dimensions: 3.5mm x 33mm x 38mm (TxLxW). The electrical specifications are a subset of the PC Card standard, restricted to memory applications only. It uses a 16-bit data bus and a 24-bit address bus to allow a single card to store up to 64MB.}

PCMCIA ExpressCard {ExpressCard is the form factor for PCMCIA Circuit Cards using either USB and PCI Express buses. The new single width card is 34mm x 75mm. The double width card is 54mm x 74mm, with a 22mm notch. The single card is called ExpressCard/34, the double width card is called ExpressCard/54. Both are 5mm high.}

PI-Bus {Synchronous, multidrop bus that supports digital message communications between up to 32 modules residing on a single backplane. PI-Bus is an avionic interface bus}

Planet {Philips Lite Automotive NETwork, used for in-vehicle safety networks}

PISA Bus {PC Expansion Bus [PCI + ISA]: An ISA card with an additional row of pins above the ISA pins, for the PCI bus. The OEM industrial embedded PISA interface is End-Of-Life}

PMBus {A two-wire interface for power management ICs}

POE {Power Over Ethernet.}

PS3 {Playstation pin out only, no other data.}

PXI {PCI eXtensions for Instrumentation [PXI] defines cPCI for Instrumentation adding additional enhancements, with the same form factor as cPCI.}

PXIe {PXIe defines PXI using the PCI Express interface instead of the PCI interface.}

An alphabetic listing of released interface buses. The links point to pages that describe the physical and electrical interfaces. Interface Bus protocols may be addressed on the Protocol Definitions page, which provide a brief definition of many of the different protocols. As a rule interface protocols are on not covered in detail on any of the interface pages.