IS42S16100E, IC42S16100E
(1,2)
OPERATION COMMAND TABLE
Current State Command
Operation
CS RAS CAS WE A11 A10A9-A0
Idl
e
DESL
No Operation or Power-Down(12)
No Operation or Power-Down(12)
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
X
H
H
H
H
L
X
H
H
L
X
H
L
X
X
X
V
V
V
V
X
X
X
X
X
NOP
X
BST
No Operation or Power-Down
X
(18)
READ / READA
WRIT/WRITA
ACT
Illegal
H
L
V
V
V
V
(18)
(18)
Illegal
L
V
Row Active
H
H
L
H
L
V
PRE/PALL
REF/SELF
MRS
No Operation
Auto-Refresh or Self-Refresh(13)
L
V
X
L
H
L
X
X
Mode Register Set
L
L
OP CODE
Row Active
DESL
No Operation
X
H
H
H
H
L
X
H
H
L
X
H
L
X
X
X
V
V
V
V
X
X
X
X
X
X
X
NOP
No Operation
BST
No Operation
Read Start(17)
Write Start(17)
Illegal(10)
(18)
READ/READA
WRIT/WRITA
ACT
H
L
V
V
(18)
(18)
L
V
V
V
H
H
L
H
L
V
PRE/PALL
REF/SELF
MRS
Precharge(15)
L
V
X
Illegal
L
H
L
X
X
Illegal
L
L
OP CODE
Read
DESL
Burst Read Continues, Row Active When Done
Burst Read Continues, Row Active When Done
Burst Interrupted, Row Active After Interrupt
Burst Interrupted, Read Restart After Interrupt(16)
Burst Interrupted Write Start After Interrupt(11,16)
Illegal(10)
X
H
H
H
H
L
X
H
H
L
X
H
L
X
X
X
V
V
V
V
X
X
X
X
X
X
X
NOP
BST
(18)
READ/READA
WRIT/WRITA
ACT
H
L
V
V
(18)
(18)
L
V
V
V
H
H
L
H
L
V
PRE/PALL
REF/SELF
MRS
Burst Read Interrupted, Precharge After Interrupt
Illegal
L
V
X
L
H
L
X
X
Illegal
L
L
OP CODE
Write
DESL
Burst Write Continues, Write Recovery When Done
Burst Write Continues, Write Recovery When Done
Burst Write Interrupted, Row Active After Interrupt
Burst Write Interrupted, Read Start After Interrupt(11,16)
Burst Write Interrupted, Write Restart After Interrupt(16)
Illegal(10)
X
H
H
H
H
L
X
H
H
L
X
H
L
X
X
X
V
V
V
V
X
X
X
X
X
X
X
NOP
BST
(18)
READ/READA
WRIT/WRITA
ACT
H
L
V
V
(18)
(18)
L
V
V
V
H
H
L
H
L
V
PRE/PALL
REF/SELF
MRS
Burst Write Interrupted, Precharge After Interrupt
Illegal
L
V
X
X
L
H
L
X
Illegal
L
L
OP CODE
Read With
Auto-
DESL
NOP
Burst Read Continues, Precharge When Done
Burst Read Continues, Precharge When Done
H
L
X
H
X
H
X
H
X
X
X
X
X
X
Precharge
BST
Illegal
L
L
L
L
L
L
L
H
H
H
L
H
L
L
H
L
X
V
V
V
V
X
X
X
(18)
READ/READA
WRIT/WRITA
ACT
Illegal
V
V
(18)
(18)
Illegal
L
V
V
V
Illegal(10)
Illegal(10)
Illegal
H
H
L
H
L
V
PRE/PALL
REF/SELF
MRS
L
V
X
X
L
H
L
X
Illegal
L
L
OP CODE
Integrated Silicon Solution, Inc. — www.issi.com
15
Rev. C
01/22/08
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
