Datasheet

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7. I/O Multiplexing and Considerations
30.5 Product Dependencies
In order to use this peripheral, other parts of the system must be configured correctly, as described below.
30.5.1 I/O Lines
In order to use the I/O lines of this peripheral, the I/O pins must be configured using the I/O Pin Controller
(PORT).
Related Links
23. PORT - I/O Pin Controller
30.5.2 Power Management
This peripheral can continue to operate in any sleep mode where its source clock is running. The
interrupts can wake up the device from sleep modes. Events connected to the event system can trigger
other operations in the system without exiting sleep modes.
Related Links
16. PM – Power Manager
30.5.3 Clocks
The TC bus clock (CLK_TCx_APB, where x represents the specific TC instance number) can be enabled
and disabled in the Power Manager, and the default state of CLK_TCx_APB can be found in the
Peripheral Clock Masking section in “PM – Power Manager”.
The different TC instances are paired, even and odd, starting from TC3, and use the same generic clock,
GCLK_TCx. This means that the TC instances in a TC pair cannot be set up to use different GCLK_TCx
clocks.
This generic clock is asynchronous to the user interface clock (CLK_TCx_APB). Due to this
asynchronicity, accessing certain registers will require synchronization between the clock domains. Refer
to 30.6.6 Synchronization for further details.
Related Links
16.6.2.6 Peripheral Clock Masking
30.5.4 DMA
The DMA request lines are connected to the DMA Controller (DMAC). In order to use DMA requests with
this peripheral the DMAC must be configured first. Refer to DMAC – Direct Memory Access Controller for
details.
Related Links
20. DMAC – Direct Memory Access Controller
30.5.5 Interrupts
The interrupt request line is connected to the Interrupt Controller. In order to use interrupt requests of this
peripheral, the Interrupt Controller (NVIC) must be configured first. Refer to Nested Vector Interrupt
Controller for details.
Related Links
SAM D21 Family
TC – Timer/Counter
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 664