11 / 18 page
Rev.01
16Mb SDRAM
11/18
Current
state
Addr.
Read w ith AP
X
X
Action
Continue burst to end
→ Precharging
Continue burst to end
→ Precharging
Notes
X
BA/CA/A10
ILLEGAL
ILLEGAL
3
BA/RA
ILLEGAL
3
BA, A10
X
ILLEGAL
ILLEGAL
3
Rem ark H = High level, L = Low level, X = High or Low level (Don't care), AP = Auto Precharge
/CS
H
L
/R
X
H
/C
X
H
/W
X
H
L
L
H
H
H
L
L
H
L
L
H
H
L
L
L
L
H
L
L
H
Command
DESL
NOP
BST
READ/READA
ACT
PRE/PALL
REF/SELF
Op-Code
ILLEGAL
L
L
L
L
MRS
BA/CA/A10
ILLEGAL
3
L
H
L
L
WRIT/WRITA
Write w ith AP
X
X
burst to end
→ Write
recovering w ith auto precharge
Continue burst to end
→ Write
recovering w ith auto precharge
X
BA/CA/A10
ILLEGAL
ILLEGAL
3
BA/RA
ILLEGAL
3
BA, A10
X
ILLEGAL
ILLEGAL
3
H
L
X
H
X
H
X
H
L
L
H
H
H
L
L
H
L
L
H
H
L
L
L
L
H
L
L
H
DESL
NOP
BST
READ/READA
ACT
PRE/PALL
REF/SELF
Op-Code
ILLEGAL
L
L
L
L
MRS
BA/CA/A10
ILLEGAL
3
L
H
L
L
WRIT/WRITA
Precharging
X
X
Nop
→ Enter idle after tRP
Nop
→ Enter idle after tRP
X
BA/CA/A10
ILLEGAL
ILLEGAL
3
BA/RA
ILLEGAL
3
BA, A10
X
Nop
→ Enter idle after tRP
ILLEGAL
H
L
X
H
X
H
X
H
L
L
H
H
H
L
L
H
L
L
H
H
L
L
L
L
H
L
L
H
DESL
NOP
BST
READ/READA
ACT
PRE/PALL
REF/SELF
Op-Code
ILLEGAL
L
L
L
L
MRS
BA/CA/A10
ILLEGAL
3
L
H
L
L
WRIT/WRITA
Row activating
X
X
Nop
→ Enter idle after tRCD
Nop
→ Enter idle after tRCD
X
BA/CA/A10
ILLEGAL
ILLEGAL
3
BA/RA
ILLEGAL
3,10
BA, A10
X
ILLEGAL
ILLEGAL
3
H
L
X
H
X
H
X
H
L
L
H
H
H
L
L
H
L
L
H
H
L
L
L
L
H
L
L
H
DESL
NOP
BST
READ/READA
ACT
PRE/PALL
REF/SELF
Op-Code
ILLEGAL
L
L
L
L
MRS
BA/CA/A10
ILLEGAL
3
L
H
L
L
WRIT/WRITA