Vmetro M5210RP-EFF, User Manual, Page: 18 / 130

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M5000 Series: User Guide Issued June 20, 2007
Product Overview
PCI6540 PCIX-to-PCIX Bridge
The PCI6540 provides a 64-bit PCI-X to PCI-X bridge designed for high performance, high
availability applications, in PCI-X to PCI-X conversion, bus expansions, frequency conversions
from faster PCI-X to slower PCI-X or from slower PCI-X to faster PCI-X bus, address remapping,
high availability and universal system-to-system bridging.
The PLX bridge is normally used as a transparent bridge, with its primary interface connected to the
Processor PCI-X Segment.
QLOGIC ISP2312 Dual Fibre Channel Host Adapter
The QLOGIC ISP2312 provides a dual-channel Fibre Channel processor which connects the 64-bit/
133MHz PCI-X bus to one or two 2 Gib Fibre Channel Fabrics or loops. PCI boot configuration is
stored into an SPROM; two SRAMs (one per channel) are used for run-time operations.
PMC Subsystem
The PMC subsystem is composed of two 3.3V PMC sites located on the Secondary and Tertiary
PCI-X segments. The connection between the two PCI(-X) segments is provided by a PLX PCI-X
to PCI-X bridge.
The PMC subsystem is connected to the primary and quaternary buses through two PLX PCI-X to
PCI-X bridges (one for each PCI-X bus).
The PMC subsystem block diagram is shown in Figure 1-3:
FIGURE 1-3
PMC
Subsystem
PMC Support
Each PMC site can operate in any of the following modes:
PMC PMC
PCI/PCI-X
(33-133MHz, 64bit)
PCI/PCI-X
(33-133MHz, 64bit)
P0 P0 P2 P2
P2IO P0IO
PLX
6540
PCI to PCI Bridge