EVK-JODY-W3 - User guide
UBX-20030840 - R04
Board description
Page 20 of 29
3.6
SDIO interface
The EVB can be connected through a micro SDIO connector for Wi-Fi communication with the host
system. The SDIO connector can optionally be used for Bluetooth
3
.
The SDIO host interface connector (J204) is shown in Figure 13.
Figure 13: SDIO interface connector
All signals except
VDD_SDIO
are directly connected to the JODY-W3 module through 22
Ω
series
resistors connected on the module board.
VDD_SDIO
can be used for supplying the EVB from the SDIO interface. The SDIO signals are powered
by the
1V8
voltage domain.
☞
Pull-up resistors for the SDIO lines are not installed on the EVB because they are typically
included in the host CPU. The EVB carrier board has the provision to install pull-up resistors if
needed by the design.
3
SDIO support for Bluetooth is currently not productized.
