HD6413008VF25 Datasheet, PDF (259/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

8. 16-Bit Timer
φ
External
clock input
16TCNT input
clock
16TCNT
N−1
N
N+1
Figure 8.16 Count Timing for External Clock Sources (when Both Edges are Detected)
Waveform Output by Compare Match: In 16-bit timer channels 0, 1 compare match A or B can
cause the output at the TIOCA or TIOCB pin to go to 0, go to 1, or toggle. In channel 2 the output
can only go to 0 or go to 1.
• Sample setup procedure for waveform output by compare match
Figure 8.17 shows an example of the setup procedure for waveform output by compare match.
Output setup
Select waveform
output mode
1. Select the compare match output mode (0, 1, or
toggle) in TIOR. When a waveform output mode
is selected, the pin switches from its generic input/
output function to the output compare function
1
(TIOCA or TIOCB). An output compare pin outputs
the value set in TOLR until the first compare match
occurs.
Set output timing
2 2. Set a value in GRA or GRB to designate the
compare match timing.
Start counter
3 3. Set the STR bit to 1 in TSTR to start the timer
counter.
Waveform output
Figure 8.17 Setup Procedure for Waveform Output by Compare Match (Example)
Rev.4.00 Aug. 20, 2007 Page 213 of 638
REJ09B0395-0400