11
1Gbit (32Mx32bit) Mobile SDR Memory
H55S1G(2/3)2MFP Series
CURRENT STATE TRUTH TABLE (Sheet 3 of 4)
Command
Current
Action
Notes
BA0/
BA1
State
CS RAS CAS WE
Amax-A0
Description
L
L
L
L
L
L
L
OP CODE
Mode Register Set
ILLEGAL
13,14
13
H
X
X
X
Auto or Self Refresh ILLEGAL
No Operation:
Bank(s) idle after tRP
L
L
H
L
BA
Precharge
L
L
L
L
H
L
H
L
BA
BA
BA
Row Add.
Bank Activate
ILLEGAL
4,12
4,12
4,12
Precharging
H
H
Col Add. A10 Write/WriteAP
Col Add. A10 Read/ReadAP
ILLEGAL
L
H
ILLEGAL
No Operation:
Bank(s) idle after tRP
L
H
X
H
X
H
X
X
X
X
X
No Operation
No Operation:
Bank(s) idle after tRP
H
Device Deselect
L
L
L
L
L
L
L
L
L
H
L
OP CODE
Mode Register Set
ILLEGAL
13,14
13
X
X
X
Auto or Self Refresh ILLEGAL
H
BA
Precharge
ILLEGAL
ILLEGAL
4,12
4,11,1
2
L
L
H
H
BA
Row Add.
Bank Activate
Row
Activating
L
L
H
H
L
L
L
BA
BA
Col Add. A10 Write/WriteAP
Col Add. A10 Read/ReadAP
ILLEGAL
ILLEGAL
4,12
4,12
H
No Operation: Row
Active after tRCD
L
H
X
H
X
H
X
X
X
X
X
No Operation
No Operation: Row
Active after tRCD
H
Device Deselect
L
L
L
L
L
L
L
L
L
L
L
H
L
OP CODE
Mode Register Set
ILLEGAL
13,14
13
X
X
X
Auto or Self Refresh ILLEGAL
H
H
BA
BA
Precharge
ILLEGAL
ILLEGAL
4,13
4,12
H
Row Add.
Bank Activate
Write
Recovering
Start Write:
Optional AP(A10=H)
L
L
L
H
H
H
L
L
L
BA
BA
X
Col Add. A10 Write/WriteAP
Col Add. A10 Read/ReadAP
Start Read: Optional
AP(A10=H)
H
H
9
No Operation:
Row Active after tDPL
H
X
No Operation
Rev 1.2 / Jun. 2008
20
HYNIX [ HYNIX SEMICONDUCTOR ]
