Epa Channel Functional Overview - Intel 8XC196MC User Manual

CLKOUT†
PH2
T1CLK
T1DIR
COUNT
x x + 1 x + 2
† CLKOUT is available on the 8XC196MC and 8XC196MD only.
Figure 11-4. Quadrature Mode Timing and Count

11.4 EPA CHANNEL FUNCTIONAL OVERVIEW

The EPA has both programmable capture/compare and compare-only channels. Each cap-
ture/compare channel can perform the following tasks. (The compare-only channels have the
same functionality except that they cannot capture an external event.)
•
capture the current timer value when a specified transition occurs on the EPA pin
•
start an A/D conversion or reload the waveform generator when an event is captured or the
timer value matches the programmed value in the event-time register
•
clear, set, or toggle the EPA pin when the timer value matches the programmed value in the
event-time register
•
generate an interrupt when a capture or compare event occurs
•
reset its own base timer in compare mode
•
reset the opposite timer in both compare and capture mode
x + 3 x + 4 x + 5 x + 6
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EVENT PROCESSOR ARRAY (EPA)
x + 5 x + 4 x + 3 x + 2 x + 1
A1549-01
11-9