...........continued
Ref.
Type
Feature
Color
Status
Used for
What to do if mounted
R165
Resistor
nRST_OUT
Blue
nRST selection instead of
NRST_OUT
Remove R166.
R198
Resistor
nRST_OUT
Blue
nRST selection instead of
NRST_OUT
Remove R199.
R119
Resistor
nRST_OUT
Blue
NRST_OUT selection instead of
SDMMC1_RSTN_PB28
If mounted, the SD
Card can also be reset
by the processor reset
line.
R24
Resistor
nRST_OUT
Red
nRST_OUT pull-up
No impact
R10
Resistor
PMIC
Red
PMIC output voltage selection
Never mount this
element. The VLDO1
output voltage is set
to 1.8V for SD Card
voltage selection. If
changed, the SD Card
interface might get
destroyed.
C103
Capacitor
SAMA7G5
Blue
DDR_VERF decoupling
No impact
C123
Capacitor
SAMA7G5
Red
DDR_VERF decoupling
C124
Capacitor
SAMA7G5
Red
DDR_VERF decoupling
R26
Resistor
SAMA7G5
Red
Boundary scan selection
If mounted, at boot
the device enters in
boundary scan.
R191
Resistor
Supply
Blue
Input supply selection
Remove R185.
C167
Capacitor
Supply
Red
AVDDH decoupling
–
Note: Excessive
capacitor load on the
MCP16502 DCDC or
LDO lines can result
in output instability and
power-on sequence
failure.
C177
Capacitor
Supply
Red
DVDDH decoupling
R148
Resistor
Ethernet
RGMII
Red
TXCK pull-up
–
R153
Resistor
Ethernet
RGMII
Blue
RXCTL pull-up
–
7.2
Soldering the Wi-Fi/BT Module
Extra care must be taken when assembling the ATWILC3000-MR110xA Wi-Fi/BT module.
Refer to the application note "How to Manually Solder the ATWILC3000 Module on an MPU Board". See
.
SAMA7G54-EK
Appendix B. Unmounted Elements
©
2022 Microchip Technology Inc.
and its subsidiaries
User Guide
DS50003273A-page 83