1
Download 8XC196NT Microcontroller User`s Manual
Transcript
EVENT PROCESSOR ARRAY (EPA) CLKOUT PH2 TxCLK TxDIR COUNT x x+1 x +2 x +3 x +4 x +5 x +6 x +5 x +4 x +3 x +2 x +1 A0269-02 Figure 10-4. Quadrature Mode Timing and Count 10.4 EPA CHANNEL FUNCTIONAL OVERVIEW The EPA has ten programmable capture/compare channels that can perform the following tasks. • capture the current timer value when a specified transition occurs on the EPA pin • start an A/D conversion 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 generate an interrupt when a capture overrun occurs reset its own base timer in compare mode reset the opposite timer in both compare and capture mode In addition to the capture/compare channels, the EPA also has two compare-only channels. They support all the compare functions of the capture/compare channels. 10-9
