Datasheet

Bits 16, 17 – CAPTENx Capture Channel x Enable
Bit x of CAPTEN[1:0] selects whether channel x is a capture or a compare channel.
These bits are not synchronized.
Value Description
0
CAPTEN disables capture on channel x.
1
CAPTEN enables capture on channel x.
Bit 15 – DMAOS DMA One-Shot Trigger Mode
This bit enables the DMA One-shot Trigger Mode.
Writing a '1' to this bit will generate a DMA trigger on TC cycle following a
TC_CTRLBSET_CMD_DMAOS command.
Writing a '0' to this bit will generate DMA triggers on each TC cycle.
This bit is not synchronized.
Bit 11 – ALOCK Auto Lock
When this bit is set, Lock bit update (LUPD) is set to '1' on each overflow/underflow or re-trigger event.
This bit is not synchronized.
Value Description
0
The LUPD bit is not affected on overflow/underflow, and re-trigger event.
1
The LUPD bit is set on each overflow/underflow or re-trigger event.
Bits 10:8 – PRESCALER[2:0] Prescaler
These bits select the counter prescaler factor.
These bits are not synchronized.
Value Name Description
0x0
DIV1 Prescaler: GCLK_TC
0x1
DIV2 Prescaler: GCLK_TC/2
0x2
DIV4 Prescaler: GCLK_TC/4
0x3
DIV8 Prescaler: GCLK_TC/8
0x4
DIV16 Prescaler: GCLK_TC/16
0x5
DIV64 Prescaler: GCLK_TC/64
0x6
DIV256 Prescaler: GCLK_TC/256
0x7
DIV1024 Prescaler: GCLK_TC/1024
Bit 7 – ONDEMAND Clock On Demand
This bit selects the clock requirements when the TC is stopped.
In standby mode, if the Run in Standby bit (CTRLA.RUNSTDBY) is '0', ONDEMAND is forced to '0'.
This bit is not synchronized.
Value Description
0
The On Demand is disabled. If On Demand is disabled, the TC will continue to request the
clock when its operation is stopped (STATUS.STOP=1).
1
The On Demand is enabled. When On Demand is enabled, the stopped TC will not request
the clock. The clock is requested when a software re-trigger command is applied or when an
event with start/re-trigger action is detected.
Bit 6 – RUNSTDBY Run in Standby
This bit is used to keep the TC running in standby mode.
This bit is not synchronized.
SAM D5x/E5x Family Data Sheet
TC – Timer/Counter
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1732