S0: Fetch Instr
Reset
S1: Decode
S2: MemAdr
ALUSrcA=10
ALUSrcB=01
ALUOp=00
S3: MemRead
ResultSrc=00
AdrSrc=1
S4: MemWB
ResultSrc=01
RegWrite
AdrSrc=0
IRWrite

S5: MemWrite
ResultSrc=00
AdrSrc=1
MemWrite
op=0000011 (lw)
op=0100011 (sw)