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AMD Geode™ LX Processors Data Book
GeodeLink™ PCI Bridge
33234H
6.15
GeodeLink™ PCI Bridge
The GeodeLink™ PCI Bridge (GLPCI) module provides a
PCI interface for GeodeLink Interface Unit-based designs.
The GLPCI module is composed of five major blocks:
•
GeodeLink Interface
•
FIFO/Synchronization
•
Transaction Forwarding
•
PCI Bus Interface
•
PCI Arbiter
The GeodeLink and PCI Bus Interface blocks provide
adaptation to the respective buses. The Transaction For-
warding block provides bridging logic.
Features
•
PCI Version 2.2 compliance
•
32-bit, 66 MHz PCI bus operation
•
Target support for fast back-to-back transactions
•
Arbiter support for three external PCI bus masters
•
Write gathering and write posting for in-bound write
requests
•
Virtual PCI header support
•
Delayed transactions for in-bound read requests
•
Zero wait state operation within a PCI burst
•
Dynamic clock stop/start support for GLIU and PCI clock
domains (this is not CLKRUN support)
•
Capable of handling out of bound transactions immedi-
ately after reset
Figure 6-58. GLPCI Block Diagram
PCI Bus Interface
PCI Bus
Request
Request
Data
PCI
Arbiter
REQ#/GNT#
MSR
Transaction Forwarding
FIFOs/Synchronization
GeodeLink™ Interface
GeodeLink™ Interface Unit 1 (GLIU1)
Clock Control
Clock Control
Clock Control
Summary of Contents for Geode LX 600
Page 14: ...14 AMD Geode LX Processors Data Book Overview 33234H...
Page 20: ...20 AMD Geode LX Processors Data Book Architecture Overview 33234H...
Page 44: ...44 AMD Geode LX Processors Data Book Signal Definitions 33234H...
Page 88: ...88 AMD Geode LX Processors Data Book GLIU Register Descriptions 33234H...
Page 618: ...618 AMD Geode LX Processors Data Book Electrical Specifications 33234H...