mangOH Green DV4, Developer'S Manual, Page: 28 / 34

mangOH Green (DV4) Developer’s Guide
Rev 2 Jun.16 28 4118903
UIM Signals
The mangOH Green implements both UIM interfaces (UIM1, UIM2) defined by the CF3 specification.
Figure 2-16 on page 28 shows the default configuration used when the board boots.
Note: Throughout this document, ‘UIM’ is used to refer to UIM, USIM, SIM, UICC.
Figure 2-16: SIM Interfaces Configuration
The UIM interface configuration can be modified as detailed in Table 2-11 .
UIM1
The primary CF3 module’s UIM1 signal connects through multiplexers (as shown in Figure 2-16 on
page 28) to:
• mini-SIM holder (CN801)—Default connection
• micro-SIM holder (CN802)
Note: The primary CF3 module’s UIM1_DET signal will indicate when a SIM is present in the holder.
To switch the connected component, see Table 2-11 .
SIM Holder #1
(CN801)
SIM Holder #2
(CN802)
Main CF3
UIM1
UIM2
Secondary
CF3
UIM2
Note: Green arrows show default
hardware configuration
Mux1
Mux2
Mux3
Table 2-11: UIM Interface Configuration Changes
Change type Change effect Method Change duration
Software
•
Mux2—Use default or
alternate configuration.
•
Mux3—Use default or
alternate configuration.
API command Modifies running
configuration until device
reboots or another
change is made.
Hardware Mux1, Mux2, Mux3—Use
default or alternate
configuration Set resistor on Mux:
•
Low—Default
•
High—Alternate
Selected configuration
used every time device
boots up.