Motherboard Description |
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Specifications, Rev 2.1, is independent of the PCI bus and is intended for exclusive use with graphical display devices. A. G.P. overcomes certain limitations of the PCI bus related to handling a large amount of graphics data with the following features:
•Pipelined memory read and write operations that hide memory access latency
•Demultiplexing of address and data on the bus for near 100 percent bus efficiency
•AC timing for 133 MHz data transfer rates, allowing real data throughput in excess of 500 MB/ sec
1-9.4 Universal Serial Bus (USB)
The motherboard has two USB ports; one USB peripheral can be connected to each port. For more than two USB devices, an external hub can be connected to either port. The motherboard fully supports the universal host controller interface (UHCI) and used UHCI- compatible soft ware drivers.
Specification USB features include:
•Self- identifying peripherals that can be plugged in while the computer is running
•Automatic mapping of function to driver and configuration
•Support for isochronous and asynchronous transfer types over the same set of wires
•Support for up to 127 physical devices
•Guaranteed bandwidth and low latencies appropriate for telephony, audio, and other applications
•Error- handling and fault- recovery mechanisms built into the protocol
¿Note
Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements, even if no device or a
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