Altera Cyclone II EP2C35 PCI Development Board - Manual (Page 14)

2–4 Core Version 4.0.0 Altera Corporation
Cyclone II EP2C35 PCI Development Board Reference Manual May 2005
Component Operation
Component
Operation This section describes the board’s operation, providing detailed
component descriptions.
Cyclone II Device
The Cyclone II device (U9) is connected to all of the board’s components
through appropriate on-chip interfaces and board circuitry. The device
supports PCI and PCI-X bus interfaces, the DDR2 SDRAM, as well as the
10/100 Ethernet. Users can program the Cyclone II device to implement
custom designs.
f
For more information on Cyclone II devices, refer to the Cyclone II Device
Family Data Sheet section of the Cyclone II Device Handbook.
PCI & PCI-X Bus Support & Compatibility
The board is compatible with Altera ® PCI MegaCore ® functions
(pci_mt64, pci_mt32, pci_t64, pci_t32), AMPP SM PCI and PCI-X
megafunctions, and other third-party vendor megafunctions.
The Cyclone II devices and PCI connector (J13) support PCI Local Bus
Specification, Revision 3.0 and PCI-X, Revision 2.0 mode 1. See
Table 2–2 .
PCI Level Converters
Board components U13 - U17 and U20 - U24 are IDT IDTQS3861Q level
converters that convert between 5.0-V PCI backplane signals and
Cyclone II 3.3-V signals.
Table 2–2. PCI & PCI-X Bus Support
Application Width (Bits) Voltage (V) Speed (MHz)
PCI 32 and 64 3.3 or 5.0 V 33 or 66 MHz
PCI-X 32 and 64 3.3 V 66 or 100 MHz