Digilent MX4cK - Manual (Page 22)

Cerebot MX4cK Reference Manual
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Appendix A: Connector Descriptions and Jumper Settings
Label
Function
J1 SPI port #1 connector
Because of multiple uses for the pins, the signals for SPI port #1 are scattered across
multiple Pmod connectors. This connector provides all of the SPI port #1 signals on a single
connector. All of the signal pins on this connector are shared with pins on various Pmod
connectors.
J2 I2C port #1 daisy chain connector
This connector provides access to the I
2 C signals, power and ground for I2C1.
J3 &
J4 Pull-up enable for I2C port #1
These two jumpers are used to enable/disable the pull-up resistors on I2C1. Insert shorting
blocks on these two jumpers for enable the pull-up resistors. Remove the shorting blocks to
disable the pull-up resistors. Only a single device on the I
2 C bus should have the pull-up
resistors enabled.
J5 Servo bus power connector
This connector is used to provide power to the servo power bus, VS.
J6 I2C port #2 daisy chain connector
This connector provides access to the I
2 C signals, power and ground for I2C2.
J7 USB Serial converter auxiliary signals
This connector can be used to access the auxiliary RS232 handshaking signals not used on
the Cerebot MX4cK board.
J8 USB Serial converter (UART) connector
This USB micro-AB connector is used to connect the FT232R serial converter to a USB port
on the user PC.
J9 Licensed Debugger USB connector
This USB micro-AB connector is used to connect the licensed debugger to a USB port on the
user PC.
J10 DAC output
The analog output voltage of IC3, the MCP4725 Digital to Analog converter, is available at
this connector.
J11 Do not use
Used for manufacturing test purposes.