W9825G6JH Datasheet, PDF (20/42 Pages) Winbond – 4 M  4 BANKS  16 BITS SDRAM

W9825G6JH
10.4 Mode Register Set Cycle
CLK
CS
tCMS tCMH
tRSC
RAS
CAS
WE
A0-A12
BS0,1
tCMS tCMH
tCMS tCMH
tCMS tCMH
tAS
tAH
Register
set data
A0
A1
Burst Length
A2
A3
Addressing Mode
A4
A5
CAS Latency
A6
A07 "0" (Test Mode)
A8 "0"
Reserved
A9
WriteAM0 ode
A10 "0"
AA101 "0"
A12 _"0"
BS0 "0"
Reserved
BS1 "0"
* "Reserved" should stay "0" during MRS cycle.
next
command
A2 AA10 A0
0 A00 0
0 A00 1
0 A10 0
0 A10 1
1 A00 0
1 A00 1
1 A10 0
1 A10 1
A03
0
1
A6 AA50 A4
0 A00 0
0 A00 1
0 A10 0
0 A10 1
1 A00 0
A09
0
1
Burst Length
Sequential
Interleave
1
1
2
2
4
4
8
8
Reserved
Reserved
Full Page
Addressing Mode
Sequential
Interleave
CAS Latency
Reserved
Reserved
2
3
Reserved
Single Write Mode
Burst read and Burst write
Burst read and single write
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Publication Release Date: Nov. 29, 2011
Revision A04