Hardware
Rev 2 Oct.19
15
41113116
Platform controls
Multi-function
switch (SW403 )
Module signals
control
Eight dipswitches:
1.
HL78_MODE_ON
Module type installed:
•
ON—HL78 module installed. (Note: HL78 UART0
signals are carried on the CF3 socket’s UIM2 pins.)
•
OFF—WP module installed
2.
TP1_BOOT
CF3 module’s TP1 (boot) signal
•
ON—Stop boot process at primary bootloader and
enter recovery programming mode
•
OFF—Boot normally
3.
BUCK_DISABLE_N
Buck converter state, controls which components
receive power
•
ON—Converter is off. Only CF3 module receives
power.
•
OFF—Converter is on. All components receive
power.
4.
W_DISABLE_N
Radio state
•
ON—Disable
•
OFF—Enable
5.
CELL_ANT_CNTR
Main antenna to use
•
ON—External (use Main u.FL connector)
•
OFF—Integrated
6.
WIFI_ANT_CNTR
Wi-Fi antenna to use
•
ON—External (use Wi-Fi u.FL connector)
•
OFF—Integrated
7.
GPS_ANT_CNTR
GPS antenna to use
•
ON—External (use GPS u.FL connector)
•
OFF—Integrated
8.
SDIO_SEL2
SD interface source
•
ON—microSD card/IoT card
•
OFF—Wi-Fi module
Power Source
Selector (CN801)
3-pin vertical
post-terminal
strip
Power source selector
•
Pins 1/2—Client USB
•
Pins 2/3—Expansion connector (default configu-
ration); Console USB (alternate configuration via
resistor R809/R800 pop/depop)
Reset Button
(SW401)
Reset
pushbutton
RESET_IN
Purpose:Hardware reset
Generic Button
(SW500)
User-defined
pushbutton
GENERIC_BUTTON
(CF3 GPIO25)
Purpose: User-defined button
Table 2-1: mangOH Yellow Hardware Components (Continued)
Type and
Designator
a
Description
Signals / Pins
Notes
