Description: I have written 8254 counter/timer, realize all the six kinds of patterns, and the U.S. share.
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File list (Check if you may need any files):
a8254
.....\8254ip核.pdf
.....\a8254
.....\.....\8254ip核.pdf
.....\.....\a8254.asm.rpt
.....\.....\a8254.done
.....\.....\a8254.fit.rpt
.....\.....\a8254.fit.smsg
.....\.....\a8254.fit.summary
.....\.....\a8254.flow.rpt
.....\.....\a8254.map.rpt
.....\.....\a8254.map.summary
.....\.....\a8254.pin
.....\.....\a8254.pof
.....\.....\a8254.qpf
.....\.....\a8254.qsf
.....\.....\a8254.qws
.....\.....\a8254.sim.rpt
.....\.....\a8254.sof
.....\.....\a8254.tan.rpt
.....\.....\a8254.tan.summary
.....\.....\a8254.vhd
.....\.....\a8254.vhd.bak
.....\.....\a8254.vwf
.....\.....\a8254top.asm.rpt
.....\.....\a8254top.done
.....\.....\a8254top.dpf
.....\.....\a8254top.fit.rpt
.....\.....\a8254top.fit.smsg
.....\.....\a8254top.fit.summary
.....\.....\a8254top.flow.rpt
.....\.....\a8254top.map.rpt
.....\.....\a8254top.map.summary
.....\.....\a8254top.pin
.....\.....\a8254top.pof
.....\.....\a8254top.qsf
.....\.....\a8254top.qws
.....\.....\a8254top.sim.rpt
.....\.....\a8254top.sof
.....\.....\a8254top.tan.rpt
.....\.....\a8254top.tan.summary
.....\.....\a8254top.vhd.bak
.....\.....\a8254top.vwf
.....\.....\cnt_main_part.vhd
.....\.....\cnt_main_part.vhd.bak
.....\.....\cnt_reg.vhd
.....\.....\cnt_reg.vhd.bak
.....\.....\db
.....\.....\..\8254top.db_info
.....\.....\..\8254top.eco.cdb
.....\.....\..\8254top.sld_design_entry.sci
.....\.....\..\a8254.asm.qmsg
.....\.....\..\a8254.asm_labs.ddb
.....\.....\..\a8254.cbx.xml
.....\.....\..\a8254.cmp.bpm
.....\.....\..\a8254.cmp.cdb
.....\.....\..\a8254.cmp.ecobp
.....\.....\..\a8254.cmp.hdb
.....\.....\..\a8254.cmp.logdb
.....\.....\..\a8254.cmp.rdb
.....\.....\..\a8254.cmp.tdb
.....\.....\..\a8254.cmp0.ddb
.....\.....\..\a8254.cmp_bb.cdb
.....\.....\..\a8254.cmp_bb.hdb
.....\.....\..\a8254.cmp_bb.logdb
.....\.....\..\a8254.cmp_bb.rcf
.....\.....\..\a8254.dbp
.....\.....\..\a8254.db_info
.....\.....\..\a8254.eco.cdb
.....\.....\..\a8254.eds_overflow
.....\.....\..\a8254.fit.qmsg
.....\.....\..\a8254.fnsim.cdb
.....\.....\..\a8254.fnsim.hdb
.....\.....\..\a8254.fnsim.qmsg
.....\.....\..\a8254.hier_info
.....\.....\..\a8254.hif
.....\.....\..\a8254.map.bpm
.....\.....\..\a8254.map.cdb
.....\.....\..\a8254.map.ecobp
.....\.....\..\a8254.map.hdb
.....\.....\..\a8254.map.logdb
.....\.....\..\a8254.map.qmsg
.....\.....\..\a8254.map_bb.cdb
.....\.....\..\a8254.map_bb.hdb
.....\.....\..\a8254.map_bb.logdb
.....\.....\..\a8254.pre_map.cdb
.....\.....\..\a8254.pre_map.hdb
.....\.....\..\a8254.psp
.....\.....\..\a8254.pss
.....\.....\..\a8254.rpp.qmsg
.....\.....\..\a8254.rtlv.hdb
.....\.....\..\a8254.rtlv_sg.cdb
.....\.....\..\a8254.rtlv_sg_swap.cdb
.....\.....\..\a8254.sgate.rvd
.....\.....\..\a8254.sgate_sm.rvd
.....\.....\..\a8254.sgdiff.cdb
.....\.....\..\a8254.sgdiff.hdb
.....\.....\..\a8254.signalprobe.cdb
.....\.....\..\a8254.sim.cvwf
.....\.....\..\a8254.sim.hdb
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