Datasheet

394
6120F–ATARM–03-Oct-06
AT91SAM7X512/256/128 Preliminary
RC Compare cannot be programmed to generate a trigger in this configuration.
At the same time, RC Compare can stop the counter clock (CPCSTOP = 1) and/or disable the
counter clock (CPCDIS = 1).
Figure 32-10. WAVSEL = 01 Without Trigger
Figure 32-11. WAVSEL = 01 With Trigger
32.5.3.5 WAVSEL = 11
When WAVSEL = 11, the value of TC_CV is incremented from 0 to RC. Once RC is reached, the
value of TC_CV is decremented to 0, then re-incremented to RC and so on. See Figure 32-12.
Time
Counter Value
R
C
R
B
R
A
TIOB
TIOA
Counter decremented by compare match with 0xFFFF
0xFFFF
Waveform Examples
Time
Counter Value
TIOB
TIOA
Counter decremented by compare match with 0xFFFF
0xFFFF
Waveform Examples
Counter decremented
by trigger
Counter incremented
by trigger
R
C
R
B
R
A