mangOH Green DV4, Developer'S Manual, Page: 24 / 34

mangOH Green (DV4) Developer’s Guide
Rev 2 Jun.16 24 4118903
RF
The primary CF3 module’s RF signals (RF_MAIN, RF_GPS, RF_DIV) connect directly to the following
u.FL connectors on the mangOH Green:
• RF_MAIN—CN307
• RF_GPS—CN306
• RF_DIV—CN304
Power for these signals can be enabled/disabled as described in Table 2-6 .
Figure 2-10: Primary CF3 module RF Connections
SDIO
The primary CF3 module’s SDIO signal connects via a MUX to one of the following sources, as shown
in
Figure 2-11 on page 25:
• microSD holder (CN802)—Default configuration
• IOT Connector 0 (CN1000)
The SDIO interface configuration can be modified as detailed in Table 2-7 .
Table 2-6: CF3 GPIO Interface Configuration Changes
Change type Change effect Method Change duration
Hardware Enable/disable RF
power for primary CF3
module Set SW401 switch 3
(W_DISABLE_N):
•
OFF—Enable RF power
(Default configuration)
•
ON—Disable RF power
Until switch position changes
Main CF3
RF_MAIN
RF_DIV
RF_GPS
Main
(CN307)
GPS
(CN306)
DIversity
(CN304)
Note: Green arrows show default
hardware configuration
Table 2-7: SDIO Interface Configuration Changes
Change type Change effect Method Change duration
Software
•
Use default or
alternate configu-
ration. API command Selected configuration used
every time device boots up.
Hardware
•
Jumper off—Use
uSD holder
•
Jumper on—Use
IOT Connector #0
Place or remove jumper on CN902
to select configuration. Selected configuration used
every time device boots up.