Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Data Sheet
Product codes
ATSAM4E-XPRO
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
972
39.6.12.4 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
is decremented to 0, then re-incremented to RC and so on. See
A trigger such as an external event or a software trigger can modify TC_CV at any time. If a trigger occurs while
TC_CV is incrementing, TC_CV then decrements. If a trigger is received while TC_CV is decrementing, TC_CV
then increments. See
TC_CV is incrementing, TC_CV then decrements. If a trigger is received while TC_CV is decrementing, TC_CV
then increments. See
.
RC Compare can stop the counter clock (CPCSTOP = 1) and/or disable the counter clock (CPCDIS = 1).
Figure 39-14. WAVSEL = 11 without Trigger
Figure 39-15. WAVSEL = 11 with Trigger
Time
Counter Value
R
C
R
B
R
A
TIOB
TIOA
Counter decremented by compare match with RC
Waveform Examples
2
n
-1
(n = counter size)
Time
Counter Value
TIOB
TIOA
Counter decremented by compare match with RC
Waveform Examples
Counter decremented
by trigger
Counter incremented
by trigger
R
C
R
B
R
A
2
n
-1
(n = counter size)