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Motherboard Description SY-6BA+ IV
12
l A.G.P. interface
Ø Complies with the A.G.P. specification
Ø Support for +3.3 V A.G.P.-66/ devices
Ø Synchronous coupling to the host-bus frequency
l PCI bus interface
Ø Complies with the PCI specification
Ø Asynchronous coupling to the host-bus frequency
Ø PCI parity generation support
Ø Data streaming supports from PCI-to-DRAM
Ø Support for five PCI bus masters in addition to the host and PCI-
to-ISA I/O bridge
Ø Support for concurrent host, A.G.P., and PCI transactions to main
memory
l Data buffering
Ø DRAM write buffer with read-around-write capability
Ø Dedicated host-to-DRAM, PCI-to-DRAM, and PCI-A.G.P.-to-
DRAM read buffers
Ø A.G.P. dedicated inbound/outbound FIFOs (133/66 MHz), used for
temporary data storage
l Power management functions
Ø Support for system suspend/resume (DRAM and power-on
suspend)
Ø Compliant with ACPI power management
l SMBus support for desktop management functions
l Support for system management mode (SMM)
1-9.2 Intel 82371EB PCI ISA IDE Xcelerator (PIIX4E)
The PIIX4E is a multifunction PCI device implementing the PCI-to-ISA
bridge, PCI IDE functionality, USB host/hub functionality, and enhanced
power management. The PIIX4E features:
l Multifunction PCI-to-ISA bridge
Ø Support for the PCI bus at 33 MHz