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Multiple Use of Timer For Flexible File Control Disclosure Number: IPCOM000048048D
Original Publication Date: 1981-Dec-01
Included in the Prior Art Database: 2005-Feb-08

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Quinlan, WP [+details]


In a flexible disk control three dedicated hardware units are replaced by software manipulation of a counter. One short term and two long term timing functions must be performed: erase gate delay, spindle motor tachometer (tach) period, and spindle motor pulse-width modulation (PWM).