Atmel SAM L22 Xplained Pro, Руководство пользователя

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Table 4-21. DGI Interface Connections when using SPI
SAM L22 pin Function Shared functionality
PB25 SERCOM5 PAD[1] SPI SS (Slave
select) (SAM L22 is Master) -
PB24 SERCOM5 PAD[0] SPI MISO (Master
In, Slave Out) -
PB22 SERCOM5 PAD[2] SPI MOSI (Master
Out, Slave in) -
PB23 SERCOM5 PAD[3] SPI SCK (Clock Out) -
Table 4-22. DGI Interface Connections when using I²C
SAM L22 pin Function Shared functionality
PB30 SERCOM5 PAD[0] SDA (Data line) EXT1 , EXT2 , EXT3 , Shield , and Crypto
PB31 SERCOM5 PAD[1] SCL (Clock line) EXT1 , EXT2 , EXT3 , Shield , and Crypto
Four GPIO lines are connected to the Embedded Debugger. The EDBG can monitor these lines and time
stamp pin value changes. This makes it possible to accurately time stamp events in the SAM L22
application code. For further information on how to configure and use the GPIO monitoring features, see
Atmel Data Visualizer and the EDBG User Guide .
Table 4-23. GPIO Lines Connected to the EDBG
SAM L22 pin Function Shared functionality
PB04 GPIO0 SLCD , EXT2 , and XAM
PB05 GPIO1 SLCD , EXT2 , and XAM
PC00 GPIO2 Shield and EXT2
PC01 GPIO3 User SW0 , Shield , and EXT2
4.4.4. XAM Configuration
On the SAM L22 Xplained Pro the MCU and the MCU peripherals (e.g. extensions) are powered by its
own regulator as shown in the figure below. All other parts of the board, mainly embedded debugger and
accompanying Xplained Pro Analog Module (XAM), are powered from a separate regulator. The current
to the MCU and peripherals can be measured by connecting them to the XAM output through jumper
settings.
Atmel SAM L22 Xplained Pro [USER GUIDE]
Atmel-42474B-SAM-L22-Xplained-Pro_User Guide-12/2015
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