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108 www.xilinx.com Ethernet AVB Endpoint User Guide
UG492 July 23, 2010
Chapter 11: Constraining the Core
INST "*top/avb_configuration_inst/tx_send_frame*" TNM = FFS
"tx_regs_sample";
INST "*top/avb_configuration_inst/tx_sendslope_int*" TNM = FFS
"tx_regs_sample";
INST "*top/avb_configuration_inst/tx_idleslope_int*" TNM = FFS
"tx_regs_sample";
TIMESPEC "ts_tx_regs_sample" = FROM "cpu_bus" TO "tx_regs_sample" 24 ns
DATAPATHONLY;
INST "*top/avb_configuration_inst/rd_data_tx*" TNM = FFS "tx_rd_data";
INST "*top/avb_configuration_inst/cpu_rd_data*" TNM = FFS
"tx_cpu_rd_data";
TIMESPEC "ts_tx_rd_data" = FROM "tx_rd_data" TO "tx_cpu_rd_data" 16 ns
DATAPATHONLY;
# clock domain crossing constraints for RTC Configuration Logic
#---------------------------------------------------------
INST "*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/wr_toggle"
TNM = FFS "rtc_wr_toggle";
INST
"*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/resync_write_tog
gle/data_sync" TNM = FFS "resync_rtc_write_toggle";
TIMESPEC "ts_rtc_wr_toggle" = FROM "rtc_wr_toggle" TO
"resync_rtc_write_toggle" TIG;
INST "*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/rd_toggle"
TNM = FFS "rtc_rd_toggle";
INST
"*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/resync_read_togg
le/data_sync" TNM = FFS "resync_rtc_read_toggle";
TIMESPEC "ts_rtc_rd_toggle" = FROM "rtc_rd_toggle" TO
"resync_rtc_read_toggle" TIG;
INST
"*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/new_rd_toggle"
TNM = FFS "cpu_rtc_rd_toggle";
INST
"*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/resync_new_rd_to
ggle/data_sync" TNM = FFS "resync_cpu_rtc_rd_toggle";
TIMESPEC "ts_cpu_rtc_rd_toggle" = FROM "cpu_rtc_rd_toggle" TO
"resync_cpu_rtc_rd_toggle" TIG;
INST
"*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/new_wr_toggle"
TNM = FFS "cpu_rtc_wr_toggle";
INST
"*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/resync_new_wr_to
ggle/data_sync" TNM = FFS "resync_cpu_rtc_wr_toggle";
TIMESPEC "ts_cpu_rtc_wr_toggle" = FROM "cpu_rtc_wr_toggle" TO
"resync_cpu_rtc_wr_toggle" TIG;
INST "*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/new_be*"
TNM = FFS "rtc_cpu_sample";
INST "*top/rtc_inst/rtc_configuration_inst/rtc_cpu_reclock/new_addr*"
TNM = FFS "rtc_cpu_sample";
TIMESPEC "ts_rtc_cpu_sample" = FROM "cpu_bus" TO "rtc_cpu_sample" 16 ns
DATAPATHONLY;