PCI6254 - PLX Technology

PCI6254 Dual Mode PCI to PCI Bridge

First Marketing release of PCI 6254 data book Second Marketing release of PCI 6254 data book - corrected some typing mistakes. Updated specifications • CLKRUN pins can be left unconnected in Transparent Mode if CLKRUN mechanism is not enabled by software • Remove Private memory descriptions from Non-Transparent Mode section. Private memory is only for Transp.

Features

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• Programmable Transparent, Non-Transparent or Universal Mode operation Jumper less switching between System and Peripheral Slot applications in CPCI Programmable Primary or Secondary Port System boot up priority. Semaphore backed Cross-bridge Configuration Space access Powerful multi-source (Direct encoded, door bell, PCI Reset, external pin) programmable interrupts Message Interrupt Support Optional power up 16M memory space claim to avoid Initially Retry or Initially Not Respond requirement Behave as a Memory mapped PCI device Primary and Secondary Port controlla.