EVK-JODY-W3 - User guide
UBX-20030840 - R04
Board description
Page 18 of 29
3.4
Bootstrapping
JODY-W3 supports the following host interface combinations:
•
PCIE-UART
mode: Commands and data for the Wi-Fi traffic are transferred through the PCIe bus
to the module. The Bluetooth traffic uses the high-speed UART interface.
•
SDIO-UART
mode: Commands and data for the Wi-Fi traffic is transferred through the SDIO bus
to the module. The Bluetooth traffic uses the high-speed UART interface.
•
SDIO-SDIO
mode: Commands and data for both the Wi-Fi and Bluetooth traffic is transferred to
the module through the SDIO bus.
2
DIP switch SW503 is used on the EVB to define the boot mode and the physical interfaces used for
Wi-Fi and Bluetooth communication. Set each switch ON to pull the configuration signal low (GND,
logic level “0”), and OFF to pull it high (logic level “1”).
Figure 11: Boot and host interface configuration
Table 8 describes the DIP switch positions for configuring the boot mode and host interface options.
Boot mode
CON_2
CON_1
CON_0
Description
PCIE-UART
ON
OFF
OFF
Wi-Fi through PCIe (J203), Bluetooth through USB-to-UART
(J205) or UART (J305)
SDIO-UART
ON
ON
ON
Wi-Fi through SDIO (J204), Bluetooth through USB-to-UART
(J205) or UART (J305)
SDIO-SDIO
ON
ON
OFF
Wi-Fi and Bluetooth through SDIO (J204)
Table 8: Boot mode selection options
☞
The UART interface for Bluetooth can be accessed either directly through J305, or through the
USB type-C connector J205 and USB-to-UART bridge. For further information about the
Bluetooth UART interface, see also
2
Driver/firmware support for SDIO-SDIO is currently not productized.
