Nec Network Controller uPD98502 Manuel d'utilisateur télécharger pdf (Page 32)

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CHAPTER 1 INTRODUCTION

Preliminary User’s Manual S15543EJ1V0UM

1.5.7 PCI controller

PCI Controller provides PCI Bus function defined by PCI SIG. This block is bridging between IBUS and PCI.

Features of PCI Controller are as follows;

• 32-bit PCI Interface (up to 33 MHz)

• 32-bit IBUS Interface (up to 33 MHz)

• Supports PCI Dual Address Cycle as master

• 33-MHz-PCI-frequency capable

• Compliant to PCI Local Bus Specification Rev. 2.2

• Compliant to PCI Bus Power Management Interface Rev. 1.1

• Supports up to 16 words burst for each directions

• Implements PCI bus arbiter that supports up to 4 external PCI-master devices at Host-mode

Figure 1-9. Block Diagram of PCI Bus controller

PCI Slave

IBUS Master

PCI

Master

IBUS Slave

RegistersFIFO FIFO FIFO FIFO

P2I

Control

I2P

Control

Data Flow

Control

PCI

Arbiter

Idle

Control

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 594 595

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Nec Network Controller uPD98502 Manuel d'utilisateur Page 32

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