at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 563

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

34.5.11.1
6384B–ATARM–15-Dec-08
WAVSEL = 00
When WAVSEL = 00, the value of TC_CV is incremented from 0 to 0xFFFF. Once 0xFFFF has
been reached, the value of TC_CV is reset. Incrementation of TC_CV starts again and the cycle
continues. See
An external event trigger or a software trigger can reset the value of TC_CV. It is important to
note that the trigger may occur at any time. See
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 in TC_CMR) and/or disable the
counter clock (CPCDIS = 1 in TC_CMR).
Figure 34-7. WAVSEL= 00 without trigger
Waveform Examples
0xFFFF
Figure
Counter Value
R
R
R
TIOB
TIOA
C
B
A
34-7.
AT91SAM9G20 Preliminary
Counter cleared by compare match with 0xFFFF
Figure
34-8.
Time
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