XESS XStend XS40, Manual

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Table 1: Jumper settings for XStend LEDs.
Jumper Jumper Setting Setting
J8 Removing the shunt on this jumper disconnects the power from bargraph LEDs D1—D8. Placing the shunt on the
jumper enables the bargraph LEDs.
J4 Removing the shunt on this jumper disconnects the power from left LED digit U1. Placing the shunt on the jumper
enables the LED digit.
J7 Removing the shunt on this jumper disconnects the power from right LED digit U2. Placing the shunt on the jumper
enables the LED digit.
J13 A shunt placed on this jumper will enable the LEDs when you are using the XStend Board with an XS95 Board. This
shunt must be removed if you are using an XS40 Board with the XStend Board!!
Listing 1 and Listing 2 show the connections from the XS40 and XS95 Boards to the
LEDs on the XStend Board expressed as UCF constraints (for the UCF syntax and usage
tips, check out
http://www.xilinx.com/techdocs/2449.htm) .
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Listing 1: Connections between the XStend LEDs and the XS40.
# LEFT LED DIGIT SEGMENT CONNECTIONS (ACTIVE-LOW)
NET LSB<0> LOC=P3;
NET LSB<1> LOC=P4;
NET LSB<2> LOC=P5;
NET LSB<3> LOC=P78;
NET LSB<4> LOC=P79;
NET LSB<5> LOC=P82;
NET LSB<6> LOC=P83;
NET LDPB LOC=P84;
#
# RIGHT LED DIGIT SEGMENT CONNECTIONS (ACTIVE-LOW)
NET RSB<0> LOC=P59;
NET RSB<1> LOC=P57;
NET RSB<2> LOC=P51;
NET RSB<3> LOC=P56;
NET RSB<4> LOC=P50;
NET RSB<5> LOC=P58;
NET RSB<6> LOC=P60;
NET RDPB LOC=P28;
#
# INDIVIDUAL LED CONNECTIONS (ACTIVE-LOW)
NET DB<1> LOC=P41;
NET DB<2> LOC=P40;
NET DB<3> LOC=P39;
NET DB<4> LOC=P38;
NET DB<5> LOC=P35;
NET DB<6> LOC=P81;
NET DB<7> LOC=P80;
NET DB<8> LOC=P10;
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Listing 2 : Connections between the XStend LEDs and the XS95.
# LEFT LED DIGIT SEGMENT CONNECTIONS (ACTIVE-LOW)
NET LSB<0> LOC=P1;