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