Computer Hardware User Manual

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CHAPTER 12 16-BIT RELOAD TIMER
Figure 12.4-2 Underflow Operation Timing
0000 H
(RELD=1)
0000 H FFFF H
(RELD=0)
-1
-1
-1
Count clock
Counter
Data loading
Underflow setting
Underflow set
Counter
Count clock
Reload data