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WEDPNF8M721V-1210BM Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers |
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9 / 42 page 9 9 9 9 9 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com White Electronic Designs WEDPNF8M721V-XBX FIG. 3 MODE REGISTER DEFINITION TABLE 1 - BURST DEFINITION Burst Starting Column Order of Accesses Within a Burst Length Address A0 2 0 0-1 0-1 1 1-0 1-0 A1 A0 0 0 0-1-2-3 0-1-2-3 4 0 1 1-2-3-0 1-0-3-2 1 0 2-3-0-1 2-3-0-1 1 1 3-0-1-2 3-2-1-0 A2 A1 A0 0 0 0 0-1-2-3-4-5-6-7 0-1-2-3-4-5-6-7 0 0 1 1-2-3-4-5-6-7-0 1-0-3-2-5-4-7-6 0 1 0 2-3-4-5-6-7-0-1 2-3-0-1-6-7-4-5 8 0 1 1 3-4-5-6-7-0-1-2 3-2-1-0-7-6-5-4 1 0 0 4-5-6-7-0-1-2-3 4-5-6-7-0-1-2-3 1 0 1 5-6-7-0-1-2-3-4 5-4-7-6-1-0-3-2 1 1 0 6-7-0-1-2-3-4-5 6-7-4-5-2-3-0-1 1 1 1 7-0-1-2-3-4-5-6 7-6-5-4-3-2-1-0 Full n = A0-9/8/7 Cn, Cn + 1, Cn + 2 Page Cn + 3, Cn + 4... Not Supported (y) (location 0-y) …Cn - 1, Cn… Type = Sequential Type = Interleaved 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. |
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