w9425g8eh Winbond Electronics Corp America, w9425g8eh Datasheet - Page 39

• Manufacturer Part Number: w9425g8eh
• Description: 8m ? 4 Banks ? 8 Bits Ddr Sdram
• Manufacturer: Winbond Electronics Corp America

11.6 Mode Register Set (MRS) Timing
CLK
CLK
CMD
ADD
* "Reserved" should stay "0" during MRS cycle.
BS0
BS1
A10
A11
A12
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
"0"
"0"
"0"
"0"
"0"
"0"
"0"
Addressing Mode
CAS Latency
Burst Length
Mode Register Set
DLL Reset
Register Set data
Extended Mode
Register Set
Reserved
Reserved
MRS
or
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t
MRD
A2
A6
1
1
0
0
0
0
1
1
1
0
0
0
0
1
1
1
BS1
0
0
1
1
A1
A3
A5
A8
1
1
0
0
1
1
0
0
1
0
1
0
0
1
1
0
0
1
0
1
BS0
0
1
0
1
A0
A4
0
0
0
1
0
1
0
1
1
0
1
0
1
0
1
1
Publication Release Date: Jul. 04
Sequential
Reserved
Reserved
NEXT CMD
2
4
8
Extended MRS cycle
Regular MRS cycle
Addressing Mode
MRS or EMRS
CAS Latency
Burst Length
Interleaved
DLL Reset
Sequential
Reserved
Reserved
Reserved
Reserved
Yes
2.5
No
2
3
Interleaved
Reserved
Reserved
2
4
8
Revision A01
,
2008