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PI7C8150BMAE Datasheet(PDF) 5 Page - Pericom Semiconductor Corporation |
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PI7C8150BMAE Datasheet(HTML) 5 Page - Pericom Semiconductor Corporation |
5 / 108 page PI7C8150B ASYNCHRONOUS 2-PORT PCI-TO-PCI BRIDGE Page 5 of 108 APRIL 2006 – Revision 2.02 TABLE OF CONTENTS 1 INTRODUCTION .............................................................................................................................. 11 2 SIGNAL DEFINITIONS ................................................................................................................... 12 2.1 SIGNAL TYPES ............................................................................................................................... 12 2.2 SIGNALS ........................................................................................................................................ 12 2.2.1 PRIMARY BUS INTERFACE SIGNALS .......................................................................... 12 2.2.3 CLOCK SIGNALS ............................................................................................................... 15 2.2.4 MISCELLANEOUS SIGNALS........................................................................................... 16 2.2.5 GENERAL PURPOSE I/O INTERFACE SIGNALS ........................................................ 17 2.2.6 JTAG BOUNDARY SCAN SIGNALS ................................................................................ 17 2.2.7 POWER AND GROUND..................................................................................................... 18 2.3 PIN LIST – 208-PIN FQFP .......................................................................................................... 18 2.4 PIN LIST – 256-BALL PBGA ..................................................................................................... 20 3 PCI BUS OPERATION ..................................................................................................................... 22 3.1 TYPES OF TRANSACTIONS..................................................................................................... 22 3.2 SINGLE ADDRESS PHASE ....................................................................................................... 23 3.3 DEVICE SELECT (DEVSEL_L) GENERATION ...................................................................... 23 3.4 DATA PHASE ............................................................................................................................. 23 3.5 WRITE TRANSACTIONS .......................................................................................................... 23 3.5.1 MEMORY WRITE TRANSACTIONS................................................................................ 24 3.5.2 MEMORY WRITE AND INVALIDATE ............................................................................ 25 3.5.3 DELAYED WRITE TRANSACTIONS............................................................................... 25 3.5.4 WRITE TRANSACTION ADDRESS BOUNDARIES....................................................... 26 3.5.5 BUFFERING MULTIPLE WRITE TRANSACTIONS..................................................... 26 3.5.6 FAST BACK-TO-BACK TRANSACTIONS ....................................................................... 27 3.6 READ TRANSACTIONS ............................................................................................................ 27 3.6.1 PREFETCHABLE READ TRANSACTIONS.................................................................... 27 3.6.2 NON-PREFETCHABLE READ TRANSACTIONS.......................................................... 27 3.6.3 READ PREFETCH ADDRESS BOUNDARIES ............................................................... 28 3.6.4 DELAYED READ REQUESTS .......................................................................................... 28 3.6.5 DELAYED READ COMPLETION WITH TARGET ........................................................ 29 3.6.6 DELAYED READ COMPLETION ON INITIATOR BUS................................................ 29 3.6.7 FAST BACK-TO-BACK READ TRANSACTION ............................................................. 30 3.7 CONFIGURATION TRANSACTIONS ...................................................................................... 30 3.7.1 TYPE 0 ACCESS TO PI7C8150B....................................................................................... 31 3.7.2 TYPE 1 TO TYPE 0 CONVERSION .................................................................................. 31 3.7.3 TYPE 1 TO TYPE 1 FORWARDING................................................................................. 33 3.7.4 SPECIAL CYCLES ............................................................................................................. 33 3.8 TRANSACTION TERMINATION ............................................................................................. 34 3.8.1 MASTER TERMINATION INITIATED BY PI7C8150B ................................................. 35 3.8.2 MASTER ABORT RECEIVED BY PI7C8150B ................................................................ 36 3.8.3 TARGET TERMINATION RECEIVED BY PI7C8150B.................................................. 36 3.8.4 TARGET TERMINATION INITIATED BY PI7C8150B.................................................. 38 4 ADDRESS DECODING..................................................................................................................... 40 4.1 ADDRESS RANGES ................................................................................................................... 40 4.2 I/O ADDRESS DECODING........................................................................................................ 40 4.2.1 I/O BASE AND LIMIT ADDRESS REGISTER................................................................ 41 4.2.2 ISA MODE........................................................................................................................... 42 06-0044 |
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