2.
ATWILC3000 Shield Peripheral Configuration
The ATWILC3000 module on the shield board can communicate with the host board using either SDIO or
SPI. By default, SDIO is supported. A resistor combination must be modified to add SPI support. The
following table provides resistor configuration details.
Table 2-1. ATWILC3000 Shield Resistor Configuration for SDIO/SPI
Peripheral Interface Required Modification for Resistors
SDIO
Mounted resistors: R311, R218, R219, R220, R221
Not mounted resistors: R214, R215, R216, R217, R310
SPI
Mounted resistors: R214, R215, R216, R217, R310
Not mounted resistors: R218, R219, R220, R221, R311
Figure 2-1. ATWILC3000 Shield SDIO-SPI Resistors
ATWILC3000
ATWILC3000 Shield Peripheral C...
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2018 Microchip Technology Inc.
User Guide
DS50002769A-page 5
