8086
WAVEFORMS
(Continued)
MINIMUM MODE (Continued)
SOFTWARE HALT
RD WR INTA
V
e
OH
DT R
INDETERMINATE
e
NOTES
1 All signals switch between V
2 RDY is sampled near the end of T
3 Two INTA cycles run back-to-back The 8086 LOCAL ADDR DATA BUS is floating during both INTA cycles Control
signals shown for second INTA cycle
4 Signals at 8284A are shown for reference only
5 All timing measurements are made at 1 5V unless otherwise noted
18
and V
unless otherwise specified
OH
OL
T
T
to determine if T
2
3
W
machines states are to be inserted
W
231455 –14