PCI9080 datasheet(2/192 Pages) ETC

2 / 192 page

PCI 9080

TABLE OF CONTENTS

©PLX Technology, Inc., 1997

Page iii

Version 1.01

TABLE OF CONTENTS

GENERAL DESCRIPTION ..............................................................................................................................................1

1.1

APPLICATIONS FOR THE PCI 9080 .......................................................................................................................2

1.1.1

PCI Adapter Cards.............................................................................................................................................................. 2

1.1.2

Embedded Systems............................................................................................................................................................ 2

1.2

MAJOR FEATURES..................................................................................................................................................3

1.3

COMPATIBILITY OF PCI 9080 WITH PCI 9060, 9060ES, AND 9060SD................................................................4

1.3.1

Pin Compatibility ................................................................................................................................................................. 4

1.3.2

Register Compatibility ......................................................................................................................................................... 4

1.4

COMPARISON OF PCI 9060, PCI 9060ES, PCI 9060SD, AND PCI 9080..............................................................5

BUS OPERATION............................................................................................................................................................6

2.1

PCI BUS CYCLES.....................................................................................................................................................6

2.1.1

PCI Target Command Codes.............................................................................................................................................. 6

2.1.2

PCI Master Command Codes ............................................................................................................................................. 6

2.1.2.1

DMA Master Command Codes ....................................................................................................................................... 6

2.1.2.2

Direct Local to PCI Command Codes ............................................................................................................................. 6

2.1.3

PCI Arbitration .................................................................................................................................................................... 6

2.2

LOCAL BUS CYCLES...............................................................................................................................................7

2.2.1

Local Bus Arbitration........................................................................................................................................................... 7

2.2.2

Local Bus Direct Master...................................................................................................................................................... 7

2.2.3

Local Bus Direct Slave........................................................................................................................................................ 7

2.2.3.1

Ready/Wait State Control ............................................................................................................................................... 7

2.2.3.1.1

Wait State—Local Side............................................................................................................................................. 7

2.2.3.1.2

Wait State—PCI Side ............................................................................................................................................... 8

2.2.3.2

Burst Mode and Continuous Burst Mode (Bterm “Burst Terminate” Mode)..................................................................... 8

2.2.3.2.1

Burst Mode ............................................................................................................................................................... 8

2.2.3.2.2

Continuous Burst Mode (Bterm “Burst Terminate” Mode)......................................................................................... 8

2.2.3.2.3

Partial Lword Accesses ............................................................................................................................................ 9

2.2.3.3

Recovery States ............................................................................................................................................................. 9

2.2.3.4

Local Bus Read Accesses .............................................................................................................................................. 9

2.2.3.5

Local Bus Write Accesses .............................................................................................................................................. 9

2.2.3.6

Direct Slave Write Accesses—8- and 16-Bit Buses........................................................................................................ 9

2.2.3.7

Local Bus Data Parity ..................................................................................................................................................... 9

2.2.3.8

Local Bus Little/Big Endian ............................................................................................................................................. 9

2.2.3.8.1

32 Bit Local Bus—Big Endian Mode ......................................................................................................................... 9

2.2.3.8.2

16 Bit Local Bus—Big Endian Mode ....................................................................................................................... 10

2.2.3.8.3

8 Bit Local Bus—Big Endian Mode ......................................................................................................................... 10

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