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W972GG6JB
8.4
Function T ruth Table
CURRENT
STATE
Idle
Banks
Active
Read
CS
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
RAS
X
H
H
H
L
L
L
L
X
H
H
H
L
L
L
L
X
H
H
H
L
L
L
L
X
H
H
H
CAS
X
H
L
L
H
H
L
L
X
H
L
L
H
H
L
L
X
H
L
L
H
H
L
L
X
H
L
L
WE
X
H
H
L
H
L
H
L
X
H
H
L
H
L
H
L
X
H
H
L
H
L
H
L
X
H
H
L
ADDRESS
X
X
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
X
Op-Code
X
X
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
X
Op-Code
X
X
BA, CA, A10
BA, CA, A10
BA, RA
BA, A10
X
Op-Code
X
X
BA, CA, A10
BA, CA, A10
COMMAND
DSL
NOP
READ/READA
WRIT/WRITA
ACT
PRE/PREA
AREF/SELF
MRS/EMRS
DSL
NOP
READ/READA
WRIT/WRITA
ACT
PRE/PREA
AREF/SELF
MRS/EMRS
DSL
NOP
READ/READA
WRIT/WRITA
ACT
PRE/PREA
AREF/SELF
MRS/EMRS
DSL
NOP
READ/READA
WRIT/WRITA
ACTION
NOP or Power down
NOP or Power down
ILLEGAL
ILLEGAL
Row activating
Precharge/ Precharge all banks
Auto Refresh or Self Refresh
Mode/Extended register
accessing
NOP
NOP
Begin read
Begin write
ILLEGAL
Precharge/ Precharge all banks
ILLEGAL
ILLEGAL
Continue burst to end
Continue burst to end
Burst interrupt
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Continue burst to end
Continue burst to end
ILLEGAL
Burst interrupt
NOTES
1
1
2
2
1
1,3
1
1
1
1
1,3
Write
L
L
L
L
L
L
L
L
H
H
L
L
H
L
H
L
BA, RA
BA, A10
X
Op-Code
ACT
PRE/PREA
AREF/SELF
MRS/EMRS
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
1
1
Publication Release Date: Nov. 29, 2011
- 33 -
Revision A02
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