# codec_main_clk is 40 MHz main tcxo clock NET "codec_main_clk*" TNM_NET = "codec_main_clk"; TIMESPEC "TS_codec_main_clk" = PERIOD "codec_main_clk" 25000 ps HIGH 50 %; # IFCLK is 100 MHz GPIF clock NET "IFCLK" TNM_NET = "IFCLK"; TIMESPEC "TS_IFCLK" = PERIOD "IFCLK" 10000 ps HIGH 50 %; # codec_data_clk is the data clock from catalina, sample rate dependent # this clock equals sample rate in CMOS DDR 1R1T mode # this clock is double the sample rate in CMOS DDR 2R2T mode # Max clock rate is 61.44 MHz NET "codec_data_clk_p" TNM_NET = "codec_data_clk_p"; TIMESPEC "TS_codec_data_clk_p" = PERIOD "codec_data_clk_p" 16276 ps HIGH 50 %; #always use IOB for GPIF pins for awesome timing INST "GPIF_*" IOB = TRUE; #low speed misc output group INST "SFDX*" TNM = ls_misc_out; INST "SRX*" TNM = ls_misc_out; INST "LED_*" TNM = ls_misc_out; INST "tx_enable*" TNM = ls_misc_out; INST "tx_bandsel_*" TNM = ls_misc_out; INST "rx_bandsel_*" TNM = ls_misc_out; INST "ref_sel" TNM = ls_misc_out; INST "*_ce" TNM = ls_misc_out; INST "*_miso" TNM = ls_misc_out; INST "*_mosi" TNM = ls_misc_out; INST "*_sclk" TNM = ls_misc_out; INST "gps_*" TNM = ls_misc_out; INST "FPGA_*D0" TNM = ls_misc_out; #constrain the misc IOs to the bus clock NET "bus_clk" TNM_NET = "bus_clk"; TIMESPEC "TS_bus_clk" = PERIOD "bus_clk" 10 ns HIGH 50 %; TIMEGRP "ls_misc_out" OFFSET = OUT 15 ns AFTER "bus_clk" RISING;