mangOH Yellow, Hardware Architecture Manual

Page: 30 / 41

mangOH Yellow Hardware Architecture Guide
Rev 2 Oct.19 30 41113116
Figure 2-17: SDIO Configuration
2.4.18 SPI1
The mangOH Yellow supports the CF3 module’s SPI1 signals, which connect to the IoT Connector (CN601) as
shown in
Figure 2-18 .
Figure 2-18: SPI1 Configuration
2.4.19 UART0
When the mangOH Yellow is in HL78 mode (SW403 pin 1 HL78_MODE_ON selected), UART0 is used to connect
to the Console USB connector (CN800) as shown in
Figure 2-19 . %%what is uart0 used for?
Figure 2-19: UART0 Configuration
2.4.20 UART1
The mangOH Yellow supports the CF3 module’s UART1 signals, which connect to the IoT Connector (CN601) and
Expansion Connector (CN805) as shown in
Figure 2-20 .
Important:
Do not use the UART connections on both an IoT card and a device via the expansion connector to the
mangOH Yellow at the same time.
CF3
SDIO
uSD Holder
(CN602)
Wi-Fi/BT (U300)
IoT Connector
(CN601)
SDIO_SEL2
Mux (U602)
(SDIO expander)
CF3 SPI1
IoT Connector #0
(CN601, slot IOT0)
SPI
CF3
(HL78xx)
UART0
(over UIM2_VCC /
UIM2_DATA)
Buffer
USB-UART
FTDI
Console
USB