IEI Technology IMBA-9454ISA, User Manual

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IMBA-9454ISA ATX Motherboard
Page 18
Supports traditional PCI traffic
Supports traditional AGP traffic
APIC and MSI messaging support
2.4.5 Intel
®
945G Integrated Graphics
The Intel® 945G northbridge chipset has an Intel® Gen. 3.5 integrated graphics engine
that supports CRT display devices. A DB-15 VGA connector on the external peripheral
interface connector panel is interfaced to the Intel® 945GM graphics engine. The Intel
®
945GM internal graphics engine, with an integrated 400MHz RAMDAC and hot plug CRT
support, supports analog CRT monitors up to QXGA.
2.4.6 Intel
®
945G Direct Media Interface (DMI)
Intel® 945G northbridge GMCH is connected to the Intel
®
ICH7 Southbridge Chipset
through the chip-to-chip Direct Media Interface (DMI). Features of the Intel
®
945GM DMI
are listed below:
2GB/s (1GB/s in each direction) bus speed
32-bit downstream address
2.5 Intel
®
ICH7 Southbridge Chipset
2.5.1 Intel
®
ICH7 Overview
The ICH7 southbridge chipset on the IMBA-9454ISA has the features are listed below.
Complies with PCI Express Base Specification, Revision 1.0a
Complies with PCI Local Bus Specification, Revision 2.3 and supports 33MHz
PCI operations
Supports ACPI Power Management Logic
Contains:
o
Enhanced DMA controller
o
Interrupt controller
o
Timer functions
Integrated SATA host controller with DMA operations on four ports with data
transfer rates up to 3.0 Gb/s