M54455EVB Freescale, M54455EVB Datasheet - Page 16

• Manufacturer Part Number: M54455EVB
• Manufacturer: Freescale

Specifications of M54455EVB

• Architecture: 32-bit (not ARM)
• Lead Free Status / RoHS Status: Supplier Unconfirmed

4.7.3
PCI Arbitration
By default, the EVB uses the MCF5445x on-chip PCI arbiter, and the request/grant signals from the PCI
slots are routed directly to the MCF5445x. The board does provide cut-trace options to allow you to route
these PCI arbitration signals to the FPGA. It would then be left to you to implement an external arbitration
scheme in the FPGA.
The following figures describe how to alter the M54455EVB to route the PCI arbitration signals to the
FPGA. Reference designators for the cut-trace board footprints are CT1-CT10. CT1-CT2, CT5-CT7 and
CT9 can be found near the PCI slots (J14, J15, J16, J17), and CT8, CT10, CT3 and CT4 can be found near
the MCF5445x (U1).
Figure 6. PCI Request 0 Cut Trace Option—Use FPGA for Arbitration
M54455EVB User’s Manual, Rev. 4
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Freescale Semiconductor