23/04/2019
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Version 1.09
Since the SD-Card holder was added subsequently on bootable pins (MIO40..45) of the Mars ZX3, it
shares the pins with the FX3 USB3 controller. Therefore SD-
Card and USB3 can’t be used
simultaneously.
Connector Pin
Signal
Data 0
FX3_SLOE#_SDD0
Data 1
FX3_PKTEND#_SDD1
Data 2
FX3_DQ3_SDD2
Data 3
FX3_DQ1_SDD3
Clk
FX3_SLRD#_SDCLK
CMD
FX3_SLWR#_SDCMD
CD
FX3_DQ6_SDCD# (via 1k resistor)
Table 12: J1200
–
SD-Card
2.8.12
J1300
–
Power Connector
Apply only 12V DC to this connector. The dimensions of the plug are 2.1x5.5mm
Connector Pin
Signal
Inner
VCC_12V_IN
Outer
GND
SW
USB_PWR_EN_SW# (Disables board supply from USB)
Table 13: J1300
–
Power connector
2.8.13
J1301
–
Internal Power Connector
This power connector can be used as an alternative to J1300. Apply only 12V DC to this connector. The
connector type is TE-Connectivity 292132-2.
Connector Pin
Signal
1
VCC_12V_IN
2
GND
Warning
Never apply power to this connector if DIP switch S1200-4 is set to USB power mode
(switch is on). Otherwise the Mars PM3 module will get severely damaged.