Dip Switches; Table 2: Dip Switch Cfg-A Settings; Table 3: Dip Switch Cfg-B Settings - Enclustra Mars PM3-R5 User Manual

2.7 DIP Switches

The tables below show the functions of the configuration DIP switches. The options printed bold are
the default settings.
Switch
(CFG-A / S1200)
1
2
3
4
Switch
(CFG-B / S1204)
1
2
3
4
Warning
If DIP Switch S1200-4 is on (board powered from USB) then the board must not be
powered from J1301 at the same time. Otherwise the Mars PM3 gets severely damaged.
23/04/2019
Off
Reserved (will be VCC_IO = 1.8V in
future versions)
VCC_IO is 2.5V
USB from FPGA module routed to
USB 2.0 A connector (J501)
Board powered from DC Power
Input (J1300)

Table 2: DIP switch CFG-A settings

Off
Pull down on the BOOT_MODE
signal of the Mars module (Mars
connector pin 190, SPI flash boot
mode on most modules)
Mars connector pin 170 floating
Mars connector pin 168 floating
FTDI USB UART routed to pins
34+36 of the Mars connector

Table 3: DIP switch CFG-B settings

12 / 43
On
VCC_IO is 2.5V or 3.3V
(depending on Switch 2)
VCC_IO is 3.3V
USB from FPGA module routed to
USB 3.0 B connector J500 (FX3
USB connection disabled)
Board powered from USB (J500) if
J1300 not connected
On
Pull up on the BOOT_MODE signal
of the Mars module
(passive serial or SD-Card boot
mode depending on the module)
Mars connector pin 170 tied to
GND (used as BOOT_MODE1 on
some modules)
Mars connector pin 168 tied to
GND
FTDI USB UART routed to pins
153+155 of the Mars connector
(for use with SOC modules, only
use if the FX3 FIFO interface is not
used)
Version 1.09