¡ Semiconductor
MSM54V25632A
Function Truth Table (2/5)
Current State CS RAS CAS WE DSF Address
Read
(RD)
H¥¥¥¥
¥
LHHH¥
¥
LHHLH
¥
LHHL L
¥
LHLHH
¥
L H L H L BA, CA, A8
L H L L H BA, CA, A8
L H L L L BA, CA, A8
L L H H H BA, RA
L L H H L BA, RA
LLHLH
¥
L L H L L BA, A8
L L LHH
¥
LLLHL
¥
L L L L H Op-Code
L L L L L Op-Code
Write/Block Write H ¥ ¥ ¥ ¥
¥
(WT/BW)
LHHH¥
¥
LHHLH
¥
LHHL L
¥
LHLHH
¥
L H L H L BA, CA, A8
L H L L H BA, CA, A8
L H L L L BA, CA, A8
L L H H H BA, RA
L L H H L BA, RA
LLHLH
¥
L L H L L BA, A8
L L LHH
¥
LLLHL
¥
L L L L H Op-Code
L L L L L Op-Code
Action
NOP (Continue Row Active after Burst ends)
NOP (Continue Row Active after Burst ends)
ILLEGAL
1, 2, 4, 8 Burst Length; ILLEGAL
Full Page Burst; Burst Stop Æ Bank Active
ILLEGAL
Term Burst, new Read
Term Burst, start Block Write
Term Burst, start Write
ILLEGAL
ILLEGAL
ILLEGAL
Term Burst, execute Row Precharge
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP (Continue Row Active after Burst ends)
NOP (Continue Row Active after Burst ends)
ILLEGAL
1, 2, 4, 8 Burst Length; ILLEGAL
Full Page Burst; Burst Stop Æ Row Active
ILLEGAL
Term Burst, start Read
Term Burst, new Block Write
Term Burst, new Write
ILLEGAL
ILLEGAL
ILLEGAL
Term Burst, execute Row Precharge
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Note 1
Note
2
2
2
2
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