Info:
Note that there are some resistors that aren't mounted by default on the kit listed in the
table below.
Table 4-24. Zero Ohm Resistors
Designat
or
Value
From
To
Comment
J100
cut-strap
VCC_P3V3
VCC_P3V3_CM_IN
ATSAML22N18A, peripherals
and connectors power supply
R107
0R
U100 OUT
VCC_CM_P3V3
XAM power supply
R108
0R
U100 OUT
VCC_EDBG_P3V3
EDBG power supply
R305
0R
U302 SDA
PB30 I
2
C SDA
Allows complete or partial
disconnect of U302, ATECC508A
from ATSAML22N18A
R307
0R
U302 SCL
PB31 I
2
C SCL
R400
39R
EDBG TARGET
RESET
TARGET MCU
RESET
Debug interface from the EDBG
to the ATSAML22N18A
R404
0R
EDBG SWCLK
PA30 SWCLK
R405
0R
EDBG SWDIO
PA31 SWDIO
R601
0R
XAM ADC_SYNC1
PB04 GPIO
XAM ADC sync interfaces to the
ATSAML22N18A.
R600
0R
XAM ADC_SYNC2
PB05 GPIO
R406
0R
EDBG CDC RX
PC24 UART TX
EDBG CDC and DGI interfaces
to the ATSAML22N18A
R407
0R
EDBG I
2
C SDA
PB30 I
2
C SDA
R408
0R
EDBG I
2
C SCL
PB31 I
2
C SCL
R414
330R
EDBG CDC TX
PC25 UART RX
R415
0R
EDBG SPI MOSI
PB22 SPI MOSI
R416
330R
EDBG DGI_GPIO0
PB04 GPIO
R417
330R
EDBG DGI_GPIO1
PB05 GPIO
R418
330R
EDBG DGI_GPIO2
PC00 GPIO
R419
330R
EDBG DGI_GPIO3
PC01 GPIO
R420
330R
EDBG SPI MISO
PB24 SPI MISO
R425
0R
EDBG SPI SCK
PB23 SPI SCK
R426
0R
EDBG SS
PB25 SPI SS
R427
0R
TARGET RESET
SENSE
TARGET_MCU_RES
ET
Reset sense signal to EDBG,
used to detect external resets
R900
0R
TARGET MCU
RESET
RESET UNO
ATSAML22N18A reset signal to
Arduino connectors
Atmel SAM L22 Xplained Pro [USER GUIDE]
Atmel-42474B-SAM-L22-Xplained-Pro_User Guide-12/2015
30
