Microsd Card Slot (J800); Anios I/O Connector A (J1104); Pmod I/O Connectors B, C (J1102/J1105) - Enclustra Mars EB1 Base Board User Manual

4.10

microSD Card Slot (J800)

The enclosure of J800 is connected to GND.
The microSD card signals can be connected via a multiplexer with a built-in level shifter to the Mars module
SDIO signals. This signal path can be activated by setting the SDIO_SEL signal to logic high. This signal is
controlled by the DIP switch CFG A 3 or by the system controller. Refer to Sections 6.3 and 6.10 for details
on configuration.
4.11

Anios I/O Connector A (J1104)

The Anios I/O connector can be used for user applications: it provides 24 user I/Os, a differential clock
connection, connectivity to the I2C bus, and power supply connections. The clock, data and I2C signals are
routed to the module connector - for details, refer to the Mars EB1 Base Board User Schematics [5].
Warning!
The Anios I/O pins are connected directly to the FPGA/SoC device. Use only VCC_IO voltages compliant
with the equipped FPGA/SoC device; any other voltage may damage the mounted Mars FPGA/SoC
module, as well as other devices on the Mars EB1 base board.
4.12

PMOD I/O Connectors B, C (J1102/J1105)

The dual PMOD I/O connectors (2
I/Os and power supply connections. The signals on PMOD B are connected directly to the module connec-
tor, while the signals on PMOD C are connected via 100
parallel to the system controller and to the on-board user buttons. For details, refer to the Mars EB1 Base
Board User Schematics [5].
The PMOD I/O connector B is Digilent Pmod™ compatible when VCC_IO_B is 3.3 V.
The PMOD I/O connector C is Digilent Pmod™ compatible when VCC_IO_A is 3.3 V.
Warning!
The PMOD I/O pins are connected directly to the FPGA/SoC device. Use only VCC_IO voltages compli-
ant with the equipped FPGA/SoC device; any other voltage may damage the mounted Mars FPGA/SoC
module, as well as other devices on the Mars EB1 base board.
Warning!
Do not insert a PMOD module to these connectors if the corresponding VCC_IO_[x] supply is not 3.3 V,
as this may damage the mounted Mars FPGA/SoC module, as well as other devices on the Mars EB1
base board.
D-0000-307-001
6) can be used for user applications: each connector provides 8 user
series resistors to the module connector and in
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