EDD1204ALTA, EDD1208ALTA, EDD1216ALTA
4.4 Operative Command Table Note1
(1/3)
Current state
/CS /RAS /CAS /WE
Address
Command
DESL
Action
Nop or Power down
Notes
Idle
H
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
H
L
L
L
x
H
H
H
H
L
x
H
H
L
x
H
L
x
x
x
NOP
BST
Nop or Power down
ILLEGAL
2
H
L
BA, CA, A10 READ/READA ILLEGAL
BA, CA, A10 WRIT/WRITA ILLEGAL
2
2
L
H
H
L
H
L
BA, RA
ACT
Bank activating
L
BA, A10
PRE/PALL
REF/SELF
MRS
Nop
3
4
4
4
L
H
L
x
CBR (auto) refresh or Self refresh
L
L
Op-Code
Mode register set
L
L
L
Op-Code
EMRS
DESL
Extended mode register set
Row active
x
x
x
x
x
x
Nop
H
H
H
H
L
H
H
L
H
L
NOP
Nop
BST
ILLEGAL
2
H
L
BA, CA, A10 READ/READA Begin read/read with AP
BA, CA, A10 WRIT/WRITA Begin write/write with AP
L
H
H
L
H
L
BA, RA
ACT
ILLEGAL
2
5
L
BA, A10
PRE/PALL
REF/SELF
MRS
Precharge/Precharge all banks
ILLEGAL
L
H
L
x
L
L
Op-Code
ILLEGAL
L
L
L
Op-Code
EMRS
DESL
ILLEGAL
Read
x
x
x
x
x
x
Nop (Row active after burst end)
Nop (Row active after burst end)
terminate burst, Row active
H
H
H
H
H
L
H
L
NOP
BST
6
6
H
BA, CA, A10 READ/READA terminate burst, Begin new read/
read with AP
L
L
L
H
L
L
L
H
H
L
H
L
BA, CA, A10 WRIT/WRITA ILLEGAL
BA, RA
ACT
ILLEGAL
2
6
BA, A10
PRE/PALL
terminate burst,
Precharge/Precharge all banks
ILLEGAL
L
L
L
H
L
L
L
L
L
L
L
L
L
x
H
L
L
x
x
REF/SELF
MRS
Op-Code
ILLEGAL
L
Op-Code
EMRS
DESL
NOP
ILLEGAL
Write
x
x
x
x
Nop (Row active after tWR)
Nop (Row active after tWR)
ILLEGAL
H
H
H
H
H
H
L
L
H
L
H
L
BST
BA, CA, A10 READ/READA terminate burst, Begin read/read with AP 6
BA, CA, A10 WRIT/WRITA terminate burst, Begin new write/
write with AP
6
L
L
L
L
H
H
H
L
BA, RA
ACT
ILLEGAL
2
BA, A10
PRE/PALL
terminate burst, Precharge/Precharge all 6
banks
L
L
L
L
L
L
L
L
L
H
L
L
x
REF/SELF
MRS
ILLEGAL
ILLEGAL
ILLEGAL
Op-Code
Op-Code
EMRS
17
Preliminary Data Sheet E0136E30
ELPIDA [ ELPIDA MEMORY ]
