Data interfaces 35
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 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 /Camera Link 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, it runs at 33 MHz for 132 Mbytes/sec peak transfer rates. Note the VMChannel is only available on the PCI form factor only.
