Chapter 10
SWRU191C–April 2009– Revised January 2012
Timer 3 and Timer 4 (8-Bit Timers)
Timer 3 and Timer 4 are two 8-bit timers. Each timer has two independent capture/compare channels,
each using one I/O pin per channel.
Features of Timer 3 and Timer 4 are as follows:
• Two capture/compare channels
• Set, clear, or toggle output compare
• Clock prescaler for divide by 1, 2, 4, 8, 16, 32, 64, 128
• Interrupt request generated on each capture/compare and terminal-count event
• DMA trigger function
Topic ........................................................................................................................... Page
10.1 8-Bit Timer Counter .......................................................................................... 126
10.2 Timer 3/Timer 4 Mode Control ........................................................................... 126
10.3 Channel Mode Control ...................................................................................... 126
10.4 Input Capture Mode ......................................................................................... 127
10.5 Output Compare Mode ..................................................................................... 127
10.6 Timer 3 and Timer 4 Interrupts .......................................................................... 127
10.7 Timer 3 and Timer 4 DMA Triggers .................................................................... 128
10.8 Timer 3 and Timer 4 Registers ........................................................................... 128
125
SWRU191C–April 2009–Revised January 2012 Timer 3 and Timer 4 (8-Bit Timers)
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