Compactpci Bus Interface; Pci-To-Pci Bridge - ADLINK Technology cPCI-6810 User Manual

Cpci-6810/6820 series 6u compactpci dual/single pentium tm iii sbc and rear i/o transition modules
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CompactPCI Bus Interface

The cPCI-6810/6820 operates in a 6U CompactPCI system. The
CompactPCI standard is electrically identical to the PCI local bus
standard but has been enhanced to work in harsh environments
and support more peripheral slots. Additionally, when used in a
hot-swap compliant backplane and in accordance with the
CompactPCI Hot Swap Specification, PICMG 2.1, Version 1.0, the
cPCI-6810/6820 supports hosting hot-swappable peripherals in a
powered system. The cPCI-6810/6820 can also function in a
standard (non-hot-swap) CompactPCI system without live
insertion and extraction capability.

PCI-to-PCI Bridge

The HiNT HB6 is a tri-mode universal PCI-to-PCI Bridge and is
used to implement the system/peripheral slot on the cPCI-6810/
6820. The three-mode bridge is capable of operating in
Transparent, Non-Transparent, or Universal mode. The HB6 Non-
Transparent mode permits independent memory mapping of both
primary and secondary buses with powerful configuration options
to support intelligent subsystems. The Universal mode permits
jumper-less configuration between application to CompactPCI
interface at Peripheral Slot and System Slot. With the Universal
option, the HB6 Bridge can be configured as a transparent bridge
in a System Slot supporting a host, or as a Non-Transparent
bridge in a Peripheral Slot as an intelligent subsystem. These
options allow the cPCI-6810/6820 board to be inserted into both
the Peripheral Slot and the System Slot.
In addition to the 66MHz/64bit capability, the host bus and
subsystem bus can operate at different speeds. Together with 64-
bit to 32-bit access conversion, system architects can utilize the
bridge and connect slower or higher speed controllers on primary
or secondary bus, thereby supporting independent speed and
data bus frequency on either side of the PCI bus.
6
Introduction

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