WEDPNF8M722V-1212BC 查看數據表（PDF） - White Electronic Designs Corporation

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WEDPNF8M722V-1212BC

8Mx72 Synchronous DRAM + 16Mb Flash Mixed Module Multi-Chip Package

White Electronic Designs Corporation 

White Electronic Designs WEDPNF8M722V-XBX

FIG. 3 MODE REGISTER DEFINITION

TABLE 1 - BURST DEFINITION

Burst

Length

2

4

8

Full

Page

(y)

Starting Column

Address

A0

0

1

A1 A0

00

01

10

11

A2 A1 A0

000

001

010

011

100

101

110

111

n = A0-9/8/7

(location 0-y)

Order of Accesses Within a Burst

Type = Sequential Type = Interleaved

0-1

0-1

1-0

1-0

0-1-2-3

1-2-3-0

2-3-0-1

3-0-1-2

0-1-2-3

1-0-3-2

2-3-0-1

3-2-1-0

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

Cn, Cn + 1, Cn + 2

Cn + 3, Cn + 4...

…Cn - 1,

Cn…

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

Not Supported

NOTES:

1. For full-page accesses: y = 512.

2. For a burst length of two, A1-8 select the block-of-two burst; A0 selects the

starting column within the block.

3. For a burst length of four, A2-8 select the block-of-four burst; A0-1 select the

starting column within the block.

4. For a burst length of eight, A3-8 select the block-of-eight burst; A0-2 select

the starting column within the block.

5. For a full-page burst, the full row is selected and A0-8 select the starting

column.

6. Whenever a boundary of the block is reached within a given sequence

above, the following access wraps within the block.

7. For a burst length of one, A0-8 select the unique column to be accessed, and

Mode Register bit M3 is ignored.

9

White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com

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