EXT3 pin SAM E54
pin
Function Shared functionality
13 [USART_RX] PC23 SERCOM1 PAD[1] UART RX -
14 [USART_TX] PC22 SERCOM1 PAD[0] UART TX -
15 [SPI_SS_A] PC14 GPIO -
16 [SPI_MOSI] PC04 SERCOM6 PAD[0] SPI MOSI EXT2 and EDBG DGI
17 [SPI_MISO] PC07 SERCOM6 PAD[3] SPI MISO EXT2 and EDBG DGI
18 [SPI_SCK] PC05 SERCOM6 PAD[1] SPI SCK EXT2 and EDBG DGI
19 [GND] - - Ground
20 [VCC] - - Power for extension board
5.2.2 SD/SDIO Card
SAM E54 Xplained Pro has one standard SD card connector which is connected to the SD/MMC Host
Controller (SDHC) of the SAM E54. The table below lists all I/O-lines connected to the SD card
connector.
Table 5-4. SD/SDIO Card Connection
SAM E54 pin Function Shared functionality
PB18 MCDA0 (DAT0)
PB19 MCDA1 (DAT1)
PB20 MCDA2 (DAT2)
PB21 MCDA3 (DAT3)
PA21 MCCK (CLK) PCC
PA20 MCCDA (CMD) PCC
PD20 Card Detect (C/D) -
PD21 Write Protect (WP) -
5.2.3 PCC Camera Connector
A 2x10, 100-mil pin-header footprint for camera connector is implemented to give access to the SAM
E54's Parallel Capture Controller (PCC). The footprint is compatible with common ArduCAM modules.
Info: The PCC connector is not functional by default due to shared functionality with Ethernet,
QTouch, SD Card, EXT1, and EXT2. If using the PCC, you will partially or fully loose the ability
to use these other functions.
Info: Soldering is required to get the PCC functional. Refer to Kit Modifications for details on
modifications needed.
SAM E54 Xplained Pro
© 2017 Microchip Technology Inc.
DS70005321A-page 19
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