38
Chapter 4: Hardware reference
PCI interface
Matrox Meteor-II has a 32-bit PCI bus interface, capable of a peak transfer rate
of 132 Mbytes/sec.
The VIA’s PCI
interface
The VIA's PCI interface is 32 bits wide and operates at 33 MHz. It allows all VIA
resources to be accessed through a 128-Mbyte memory region, mappable
anywhere in the 4-Gbyte PCI address space.
In addition, the PCI interface supports various plane and pixel transfer modes by
using some of the VMChannel logic. Consequently, VMChannel and PCI
transfers cannot be performed simultaneously.
Read pre-fetch and write posting buffers are integrated to optimize Host access.
VMChannel
Matrox Meteor-II provides a 32-bit non-bus controller VMChannel interface for
a secondary or additional high-speed connection between on-board and external
devices. On a backplane system, the VMChannel runs at 33 MHz for
132 Mbytes/sec peak transfer rates.
The VMChannel is only available on the PCI form factor of
Matrox Meteor-II/Standard.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
