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3. FUNCTIONAL BLOCKS
The following section gives a detailed description of the hardware components found on
the ZT 6631. A block diagram of the ZT 6631 is shown below.
Interface
Super VGA Controller
Video Memory
(2-4 Mbyte)
Feature
Connector
Interface
Video
Output
ZT 6631
Compact
PCI
®
Functional Block Diagram
CPU INTERFACE
The ZT 6631 connects to the host CPU through a CompactPCI card cage. The interface
consists of a 32-bit data/address bus and various control signals for PCI transfers.
The ZT 6631 supports bus speeds up to 33 MHz, giving a theoretical bandwidth of
132 Mbytes per second. The PCI bus allows the ZT 6631 to support the most
demanding graphic applications while not removing bandwidth from the backplane bus.
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