82830MP Datasheet, PDF (17/159 Pages) Intel Corporation – Intel 830MP Chipset: 82830MP Graphics and Memory Controller Hub (GMCH-M)

Intel^® 830MP Chipset
R
2.5
AGP Interface
Note:
A single AGP or PCI-66 component or connector (not both) is supported by the GMCH-M’s AGP
interface. Support for a single PCI-66 device is limited to the subset supported by the AGP 2.0
Specification. The AGP/PCI1 buffers operate in 1.5V mode and support the AGP 1.5V Connector:
1.5V drive, not 3.3V safe.
This mode is compliant with the AGP 2.0 spec.
The AGP/PCI1 interface supports up to 4x AGP signaling and up to 4x Fast Writes. AGP semantic
cycles to system SDRAM are not snooped on the host bus. PCI semantic cycles to system SDRAM are
snooped on the host bus. The GMCH-M supports PIPE# or SBA[7:0] AGP address mechanisms, but not
both simultaneously. Either the PIPE# or the SBA[7:0] mechanism must be selected during system
initialization. The GMCH-M contains a 32-deep AGP request queue. High priority accesses are
supported.
298338-001
Datasheet
17