Description: RS_latch using vhdl,
When using static gates as building blocks, the most fundamental latch is the simple SR latch, where S and R stand for set and reset. It can be constructed from a pair of cross-coupled NOR (Not OR) logic gates. The stored bit is present on the output marked Q.
Normally, in storage mode, the S and R inputs are both low, and feedback maintains the Q and Q outputs in a constant state, with Q the complement of Q. If S (Set) is pulsed high while R is held low, then the Q output is forced high, and stays high when S returns to low similarly, if R (Reset) is pulsed high while S is held low, then the Q output is forced low, and stays low when R returns to low.
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File list (Check if you may need any files):
.lso
fuse.log
isim
....\SR_Latch_top_isim_beh.exe.sim
....\.............................\GDBMI-In.txt
....\.............................\GDBMI-Out.txt
....\.............................\isimcrash.log
....\.............................\ISimEngine-DesignHierarchy.dbg
....\.............................\isimkernel.log
....\.............................\netId.dat
....\.............................\SR_Latch_top_isim_beh.exe
....\.............................\tmp_save
....\.............................\........\_1
....\.............................\work
....\.............................\....\m_00000000000134643081_1328955399.c
....\.............................\....\m_00000000000134643081_1328955399.didat
....\.............................\....\m_00000000000134643081_1328955399.nt.obj
....\.............................\....\m_00000000000751492074_2073120511.c
....\.............................\....\m_00000000000751492074_2073120511.didat
....\.............................\....\m_00000000000751492074_2073120511.nt.obj
....\.............................\....\m_00000000002724187301_0017209728.c
....\.............................\....\m_00000000002724187301_0017209728.didat
....\.............................\....\m_00000000002724187301_0017209728.nt.obj
....\.............................\....\SR_Latch_top_isim_beh.exe_main.c
....\.............................\....\SR_Latch_top_isim_beh.exe_main.nt.obj
....\work
....\....\@s@r_@latch.sdb
....\....\@s@r_@latch_top.sdb
....\....\glbl.sdb
isim.cmd
isim.hdlsourcefiles
isim.log
isimwavedata.xwv
SR_Latch.gise
SR_Latch.ise
SR_Latch.prj
SR_Latch.restore
SR_Latch.stx
SR_Latch.v
SR_Latch.xise
SR_Latch.xst
SR_Latch_ise11migration.zip
sr_latch_isim_beh.wfs
SR_Latch_summary.html
SR_Latch_top.prj
SR_Latch_top.spl
SR_Latch_top.stx
SR_Latch_top.sym
SR_Latch_top.v
SR_Latch_top.xst
SR_Latch_top_beh.prj
SR_Latch_top_isim_beh.exe
SR_Latch_top_isim_beh.wdb
sr_latch_top_isim_beh.wfs
SR_Latch_top_stx.prj
SR_Latch_top_summary.html
SR_Latch_xdb
............\tmp
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............\...\...\............\ISimPlugin
............\...\...\............\..........\SignalOrdering1
............\...\...\............\..........\...............\SR_Latch_isim_beh.exe
............\...\...\............\..........\...............\SR_Latch_isim_beh.exe_StrTbl
............\...\...\............\..........\...............\SR_Latch_top_isim_beh.exe
............\...\...\............\..........\...............\SR_Latch_top_isim_beh.exe_StrTbl
............\...\...\............\PnAutoRun
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............\...\...\............\.........\.......\RunOnce_tcl
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