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82091AA Datasheet(PDF) 2 Page - Intel Corporation |
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82091AA Datasheet(HTML) 2 Page - Intel Corporation |
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2 / 204 page  82091AA floppy disk controller is the 82078 core The serial ports are 16550 compatible The parallel port supports all of the IEEE Standard 1284 protocols (ECP EPP Byte Compatibility and Nibble) The IDE interface supports 8- or 16-bit programmed IO and 16-bit DMA The Host Interface is an 8-bit ISA interface optimized for type ‘‘F’’ DMA and no wait-state IO accesses Improved throughput and performance the 82091AA contains six 16-byte FIFOs – two for each serial port one for the parallel port and one for the floppy disk controller The 82091AA also includes power management and 33V capability for power sensitive applications such as notebooks The 82091AA supports both motherboard and add-in card configurations 290486 – 1 Figure 1 82091AA Advanced Integrated Peripheral Block Diagram 2 |
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