Figure C-4 Daisy-Chain Configuration - Keithley KPXI User Manual

KPXI System Controller User's Manual
NOTE
Figure C-4
Daisy-Chain configuration
KPXI-CON-PXIREM
PXI
CN2(Rx)
CN1(Tx)
CN4(Rx)
CN3(Tx)
PXI Chassis
System Slot
Hardware overview
This describes the basic architecture of the PCI extension module and its bus architecture.
Basic architecture of PCI extension module
The KPXI-CON-PCIREM/KPXI-CON-PXIREM extension modules are basically a PCI-to-PCI
bridge. The PCI-to-PCI bridge function in the KPXI-CON-PCIREM/KPXI-CON-PXIREM supports
legacy address routed traffic, which provides 100% capability with PCI drivers, application
software, BIOS, O/Ss, etc. These functions allow users to transfer their designs without extra
effort. The functional block diagram of KPXI-CON-PCIREM/KPXI-CON-PXIREM is shown in
Figure
The Model KPXI-CON-PCIREM/KPXI-CON-PXIREM employs a serial interconnect technology,
622Mbps low voltage differential signaling (LVDS). Each extension module has two link ports,
named as Link 0 and Link 1. Each link is divided into transmit (TX) and receive (RX). Four TX and
RX differential pairs in each link are used to provide 2.5Gbps full duplex link bandwidth or 5Gbps
of total bandwidth. Incorporated with the high speed serial LVDS, it is easy to extend the
transmission up to 10 meters through shielded twisted pair copper cables.
Inside the PCI-to-PCI bridge, a PCI-to-StarFabric/StarFabric-to-PCI converter is used to translate
PCI transactions into StarFabric frames and StarFabric frames into PCI transactions. The PCI
KPXI-CON-900-01 Rev. A / January 2007
Connection of the KPXI-REM-CAB-X cables may be counter intuitive. Both BLACK
connectors go on the transmit lines because BLACK is not wired to BLACK.
C-5.
Return to Section Topics
Appendix C: PCI-to-PXI, PXI-to-PXI Extension User's Guide
KPXI-CON-PXIREM
PXI
CN2(Rx)
CN1(Tx)
CN4(Rx)
CN3(Tx)
PXI Chassis
System Slot
KPXI-CON-PXIREM
PXI
CN2(Rx)
CN1(Tx)
CN4(Rx)
CN3(Tx)
MASTER PCI or
PXI Bus
KPXI-REM-CAB-X
Connects cards
Primary Chassis
(Master)
KPXI-CON-PCIREM or
KPXI-CON-PXIREM
CN2(Rx)
CN1(Tx)
CN4(Rx)
CN3(Tx)
(Controlling Chassis)
(2 places)
MASTER PCI or
PXI Bus
PCI
or
PXI
C-11