mt18lsdt12872a Micron Semiconductor Products, mt18lsdt12872a Datasheet - Page 11

• Manufacturer Part Number: mt18lsdt12872a
• Description: Synchronous Dram Module
• Manufacturer: Micron Semiconductor Products

PDF: 09005aef8088b1bf/Source: 09005aef808807ca
SD9_18C64_128X72AG.fm - Rev. C 6/05 EN
Table 6:
Notes: 1. For full-page accesses: y = 2,048.
Burst Definition Table
2. For BL = 2, A1
3. For BL = 4, A2
4. For BL = 8, A3
5. For a full-page burst, the full row is selected and A0
6. Whenever a boundary of the block is reached within a given sequence above, the follow-
7. For BL = 1, A0
Full Page
Length
Burst
the block.
within the block.
within the block.
ing access wraps within the block.
is ignored.
(y)
2
4
8
512MB (SR), 1GB (DR): (x72, ECC) 168-Pin SDRAM UDIMM
Starting Column Address
A2
0
0
0
0
1
1
1
1
–
–
–
–
A9, A11 select the block of two burst; A0 selects the starting column within
A9, A11 select the unique column to be accessed, and mode register bit M3
A9, A11 select the block of four burst; A0
A9, A11 select the block of eight burst; A0
n = A0
(location 0-y)
A1
A1
–
0
0
1
1
0
0
1
1
0
0
1
1
A9, A11
11
A0
A0
A0
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0
1
0
1
0
1
0
1
0
1
0
1
0
1
Cn, Cn+1, Cn+2 Cn+3,
Type = Sequential
0-1-2-3-4-5-6-7
1-2-3-4-5-6-7-0
2-3-4-5-6-7-0-1
3-4-5-6-7-0-1-2
4-5-6-7-0-1-2-3
5-6-7-0-1-2-3-4
6-7-0-1-2-3-4-5
7-0-1-2-3-4-5-6
Order of Accesses Within a Burst
–
0-1-2-3
1-2-3-0
2-3-0-1
3-0-1-2
Cn+4...
...Cn-1,
A9, A11 select the starting column.
Cn...
0-1
1-0
Mode Register Definition
–
–
A1 select the starting column
A2 select the starting column
©2002 Micron Technology, Inc. All rights reserved.
Type = Interleaved
Not Supported
0-1-2-3-4-5-6-7
1-0-3-2-5-4-7-6
2-3-0-1-6-7-4-5
3-2-1-0-7-6-5-4
4-5-6-7-0-1-2-3
5-4-7-6-1-0-3-2
6-7-4-5-2-3-0-1
7-6-5-4-3-2-1-0
0-1-2-3
1-0-3-2
2-3-0-1
3-2-1-0
0-1
1-0