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GM72V66841CT/CLT
Function Truth Table (Continued)
Current
state
CS RAS CAS WE
Address
Command
Operation
Precharge
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
H
L
X
REF, SELF
MRS
ILLEGAL
ILLEGAL
NOP
MODE
Idle
X
H
H
H
H
L
X
H
H
L
X
H
L
X
X
X
DESL
NOP
NOP
BST
NOP
H
L
BA, CA, A10 READ/READ A ILLEGAL
BA, CA, A10 WRIT/WRIT A ILLEGAL
L
H
H
L
H
L
BA, RA
ACTV
PRE, PALL
REF, SELF
MRS
Bank and row active
L
BA, A10
NOP
L
H
L
X
Refresh
Mode register set
NOP
L
L
MODE
Row active
X
H
H
H
H
L
X
H
H
L
X
H
L
X
X
X
DESL
NOP
NOP
BST
NOP
H
L
BA, CA, A10 READ/READ A Begin read
BA, CA, A10 WRIT/WRIT A Begin write
L
H
H
BA, RA
ACTV
Other bank active
*3
ILLEGAL on same bank
L
L
L
L
L
L
H
L
L
L
H
L
BA, A10
X
PRE, PALL
REF, SELF
MRS
Precharge
ILLEGAL
MODE
ILLEGAL
9
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