User guide

10
VME Interface
The VME interface handles the VMEbus and its interactions with the PCI bus.
This chapter describes the functions of the VME interface, which are controlled
by the operating system. See the documentation for the operating system for
instructions on configuring the VME interface.
The VME interface consists of the DC7407 chip, the VIC64 chip, the CY7C964
bus interfaces, and the connectors to the VMEbus on the backplane. Figure 10–1
shows a block diagram of the VME interface.
Figure 10–1 VME Interface Block Diagram
ML013375
PCI Host Bridge
PCI Bus 32 Bits
Other PCI
Devices
VIC64
8 Bits
VME Connectors
3x8 Bits
CY79C964
3 Chips
DC7407
Scatter-Gather
RAM
VME Interface 10–1