Subversion Repositories pdp8

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# MINIMAL_PDP8.ucf

# For Nexys2 Card

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# Clock Interface

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NET "clk"                       LOC = "B8";

NET "clk"                       TNM_NET = clk;

NET "clk"                       IOSTANDARD = LVCMOS33;

TIMESPEC                        TS_clk = PERIOD "clk" 18 ns HIGH 50%;

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# Clock Interface

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NET "iPDP8/iCPU/rdb"            TNM_NET = iPDP8/iCPU/rdb;

TIMESPEC                        TS_iPDP8_iCPU_rdb = PERIOD "iPDP8/iCPU/rdb" 18 ns HIGH 50%;

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# Buttons

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NET "rst"                       LOC = "B18" | IOSTANDARD = LVCMOS33;            # BTN0

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# SD Interface

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NET "sdCS"                      LOC = "G16" | IOSTANDARD = LVCMOS33;            # JC9

NET "sdMOSI"                    LOC = "J16" | IOSTANDARD = LVCMOS33;            # JC2

NET "sdMISO"                    LOC = "J12" | IOSTANDARD = LVCMOS33;            # JC10

NET "sdSCLK"                    LOC = "G13" | IOSTANDARD = LVCMOS33;            # JC3

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# RS232

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NET "tty1TXD"                   LOC = "L17" | IOSTANDARD = LVCMOS33;            # JA3

NET "tty1RXD"                   LOC = "M14" | IOSTANDARD = LVCMOS33 | PULLUP;   # JA9