Battery Enable (Cn46); Boot Select (Cn48, Cn49, Cn50, Cn51); Fan Voltage Select (Cn52) - ADLINK Technology LEC-BASE MINI Technical Reference

3.22 Battery Enable (CN46)

Table 3-29 lists the pin signals of the coin cell battery enable jumper header, which provides 2
pins with 2.00mm pitch.
Pin #
1
2 +VDD_RTC

3.23 Boot Select (CN48, CN49, CN50, CN51)

Table 3-30 defines how to configure the Boot Select jumper headers for each device from which
the system may boot. Each Boot Select jumper header provides 3 pins in a single row with
2.54mm pitch and the following signals: Pin 1 is not connected; pin 2 is BOOT_SEL#; pin 3 is
ground
Boot Device
Carrier SATA
Carrier SDIO
Carrier eMMC
Carrier SPI
Module NAND
Module NOR
Module eMMC
Module SPI
Force Recovery
NOTE: The # symbol indicates the signal is Active Low.

3.24 FAN Voltage Select (CN52)

Table 3-31 lists the pin signals of the Fan Voltage Select jumper header, which provides 3 pins in
a single row with 2.54mm pitch.
Pin #
1 +V12P0_ATX
2 GND
3 +V5P0A
36
Table 3-29: Battery Enable (CN46)
Signal
3V_BAT • Jumper Installed (1-2) - coin cell battery socket
enabled (Default)
• Empty - coin cell battery socket disabled
Table 3-30: Boot Select (CN48, CN49, CN50, CN51)
CN48 (SEL0#) CN49 (SEL1#)
ON=2-3
OFF=Float OFF=Float
Jumper
ON ON
OFF ON
ON OFF
OFF OFF
ON ON
OFF ON
ON OFF
OFF OFF
OFF OFF
Table 3-31: FAN Voltage Select (CN52)
Jumper Position
CN50 (SEL2#)
ON=2-3 ON=2-3
OFF=Float
Jumper Jumper
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
Signal
CN51
(RECOV#)
ON=2-3
OFF=Float
Jumper
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
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