XESS XStend, Manual

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012- #
013- # XS95 BOARD RAM CONTROL PINS
014- NET OE_
LOC=P62; # ACTIVE-LOW OUTPUT ENABLE
015- #
016- #
017- # XSTEND BOARD CONNECTIONS
018- #
019- # DIP SWITCH CONNECTIONS
020- NET DIPSW1
LOC=P6;
021- NET DIPSW2 LOC=P7;
022- NET DIPSW3 LOC=P11;
023- NET DIPSW4 LOC=P5;
024- NET DIPSW5 LOC=P72;
025- NET DIPSW6 LOC=P71;
026- NET DIPSW7 LOC=P66;
027- NET DIPSW8 LOC=P70;
028- #
029- # PUSHBUTTON SWITCH CONNECTIONS (ACTIVE-LOW)
030- NET PUSH_SPARE_
LOC=P67;
031- NET PUSH_RESET_ LOC=P10;
032- #
033- # LEFT LED DIGIT SEGMENT CONNECTIONS (ACTIVE-LOW)
034- NET LS_0
LOC=P1;
035- NET LS_1 LOC=P2;
036- NET LS_2 LOC=P3;
037- NET LS_3 LOC=P75;
038- NET LS_4 LOC=P79;
039- NET LS_5 LOC=P82;
040- NET LS_6 LOC=P83;
041- NET LDP_ LOC=P84;
042- #
043- # RIGHT LED DIGIT SEGMENT CONNECTIONS (ACTIVE-LOW)
044- NET RS_0
LOC=P58;
045- NET RS_1 LOC=P56;
046- NET RS_2 LOC=P54;
047- NET RS_3 LOC=P55;
048- NET RS_4 LOC=P53;
049- NET RS_5 LOC=P57;
050- NET RS_6 LOC=P61;
051- NET RDP_ LOC=P34;
052- #
053- # INDIVIDUAL LED CONNECTIONS (ACTIVE-LOW)
054- NET D_1
LOC=P44;
055- NET D_2 LOC=P43;
056- NET D_3 LOC=P41;
057- NET D_4 LOC=P40;
058- NET D_5 LOC=P39;
059- NET D_6 LOC=P37;
060- NET D_7 LOC=P36;
061- NET D_8 LOC=P35;
3.2 Using the VGA Interface
This example creates a circuit that displays the contents of the XS Board RAM on a monitor
through the VGA interface of the XStend Board. The ABEL code for this example is shown in
Listing 16 ; Listing 17 and Listing 18 show the UCF files for using the XS40 and XS95 Boards
with the XStend Board, respectively.