11
1Gbit (32Mx32bit) Mobile SDR Memory
H55S1G(2/3)2MFP Series
Mobile SDR SDRAM OPERATION
State Diagram
Power
On
ACT :
Active
DPDS :
Enter Deep
Power-Down
Precharge
All
Bank
Auto
Refresh
DPDSX :
Exit Deep Power-
DownEMRS
EMRS :
Ext. Mode Reg.
Set
(E)MRS
REFS
REFX
(EXTENDED)
Mode Register
Self
Refresh
IDLE
Set
MRS :
Mode Register Set
PRE :
Precharge
DEEP
POWER
DOWN
PREALL :
Precharge All
Banks
Power
Down
REFA :
Auto Refresh
WRITEA
SUSPEND
READA
SUSPEND
Active
Power
Down
REFS :
Enter Self Refresh
REFSX :
Exit Self Refresh
READ
with AP
WRITE
with AP
READ :
Read w/o Auto
Precharge
Read
Write
READA :
Read with Auto
Precharge
Read
ROW
Write
READ
WRITE
ACTIVE
WRITE :
Write w/o Auto
Precharge
WRITEA :
Write with Auto
Precharge
WRITE
SUSPEND
READ
SUSPEND
Automatic Sequence
Precharge
Manual input
All
Rev 1.2 / Jun. 2008
25
HYNIX [ HYNIX SEMICONDUCTOR ]
