HT6550A Super I/O Controller Features • 100% compatible to IBM PC AT • Fully uPD765b and IBM–BIOS compatible floppy disk controller – 48mA floppy drive interface buffers – Support two floppy drives with capability of supporting up to four drives with an external decoder – Support 360K/720K/1.
2M/1.
44M formats – Support 250Kb/s, 300Kb/s, 500Kb/s data rate • Digital data separator eliminates critical analog adjustments • Two 16450/8250 compatible UARTs – Independent control of transmit,receive,line status and data set interrupts on each channel – Individual modem control signals for each channel – Programmable serial interface characteristics for each channel: Applications • Super (Multi) I/O ...

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