EVK-MAYA-W1 - User guide
UBX-21039658 - R01
Board description
Page 14 of 22
3.5.1
SDIO card interface
Micro SD and full-size SD card adapters are included in the EVK to connect the evaluation board to
SDIO capable host sockets. To use one of the SDIO card adapters, connect it with the smaller flat
cable to the ZIF connector J3 on the EVB. All SDIO signals are directly connected to the MAYA-W1
module through 22
Ω
series resistors. The SDIO interface can be used for power supply of the EVB.
☞
The SDIO card adapters support only the SDIO interface, which is used for Wi-Fi
communication of the MAYA-W1 module. The M.2 card adapter supports additional
interfaces, including UART for Bluetooth communication.
Figure 8: SDIO or M.2 card ZIF connector (J3)
3.5.2
M.2 card interface
An M.2 Key E card adapter is included in the EVK to connect the evaluation board to M.2 Key E host
sockets. To use the M.2 adapter, connect it with both flat cables to the matching ZIF connectors J2
and J3 on the EVB.
MAYA-W1 SDIO signals are connected through connector J3. Connector J2 provides additional
MAYA-W1 interfaces and signals to the M.2 interface, including UART (optionally through USB),
PCM/I2S, JTAG, and other sideband signals. To enable the various interfaces and connect MAYA-W1
signals to connector J2, jumpers must be placed on pin headers J4 and J5 . For information about
connecting the available MAYA-W1 interfaces to the M.2 card connector, see also Figure 9.
The M.2 interface signals M2_UART_WAKE#, M2_W_DISABLE1#, and M2_W_DISABLE2# use 3.3 V
signal voltage with voltage translators on the EVB. See
for details. All other signals are
powered from the board VIO voltage.
