Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Scheda Tecnica
Codici prodotto
ATSAMD20-XPRO
13
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
2.
Only some pins can be used in SERCOM I
2
C mode. See the Type column for using a SERCOM pin in I
2
C mode. Refer to the
for details
on the I
2
C pin characteristics
3.
for details.
4.
This function is only activated in the presence of a debugger
5.2
Other Functions
5.2.1
Oscillator Pinout
The oscillators are not mapped to the normal PORT functions and their multiplexing are controlled by registers in the
System Controller (SYSCTRL).
for more information.
5.2.2
Serial Wire Debug Interface Pinout
After reset, SWCLK functionality is selected for pin PA30 to allow for debugger probe detection. The application software
can switch the SWCLK functionality of PA30 to GPIO (or other peripherals) during runtime. PA31, by default, is config-
ured like other normal I/O pins and will automatically switch to SWDIO function when a debugger cold-plugging or hot-
plugging is detected. When the device is put in debug mode, application software accesses to PA30 and PA31 PORT
registers are ignored.
Refer to
can switch the SWCLK functionality of PA30 to GPIO (or other peripherals) during runtime. PA31, by default, is config-
ured like other normal I/O pins and will automatically switch to SWDIO function when a debugger cold-plugging or hot-
plugging is detected. When the device is put in debug mode, application software accesses to PA30 and PA31 PORT
registers are ignored.
Refer to
for more information.
Oscillator
Supply
Signal
I/O Pin
XOSC
VDDIO
XIN
PA14
XOUT
PA15
XOSC32K
VDDANA
XIN32
PA00
XOUT32
PA01
Signal
Supply
I/O Pin
SWCLK
VDDIO
PA30
SWDIO
VDDIO
PA31