Rana Systems Elite Series - Manual (Page 180)

ELITE SERIES USER MANUAL THEORY OF OPERATION
7 . 2 . 1 0 . P o w e r - O n R e s e t
Unlike early Apple II computers, a power-on
reset circuit has been included to insure the
controller assumes the correct quiescent mode
when power is first applied. This is implement-
ed with a timer circuit that pulls the reset
line down in a “wire—or” fashion. After approxi—
mately 0.2 seconds, the reset line is released.
This circuit does not interfere with the normal
operation of the reset line.
7 . 2 . 1 1 . P o w e r S u p p l y D e c o u p i i n g
All power supplies to the controller are bypass-
ed to ground on board, whether or not they are
used. This technique provides the best grounding
scheme for Apple II equipment and also reduces
noise on other bus lines.
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