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EMC646SP16JS-90LF Datasheet(PDF) 23 Page - Emerging Memory & Logic Solutions Inc |
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EMC646SP16JS-90LF Datasheet(HTML) 23 Page - Emerging Memory & Logic Solutions Inc |
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23 / 65 page ![]() EMC646SP16J 4Mx16 CellularRAM 23 Preliminary Burst Length (BCR[2:0]) Default = Continuous Burst Burst lengths define the number of words the device outputs during burst READ and WRITE operations. The device supports a burst length of 4, 8, 16, or 32 words. The device can also be set in continuous burst mode where data is accessed sequentially up to the end of row. Burst Wrap (BCR[3]) Default = No Wrap The burst-wrap option determines if a 4, 8, 16, or 32 word READ or WRITE burst wraps within the burst length, or steps through sequential addresses. If the wrap option is not enabled, the device accesses data from sequential addresses up to the end of the row. Table 3: Sequence and Burst Length BURST Wrap Starting Address 4 Word Burst Length 8 Word Burst Length 16 Word Burst Length 32 Word Burst Length Continuous Burst BCR[3] Wrap Decimal Linear Linear Linear Linear Linear 0Yes 0 0-1-2-3 0-1-2-3-4-5-6-7 0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 0-1-2 ... 29-30-31 0-1-2-3-4-5-6-... 1 1-2-3-0 1-2-3-4-5-6-7-0 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-0 1-2-3 ... 30-31-0 1-2-3-4-5-6-7-... 2 2-3-0-1 2-3-4-5-6-7-0-1 2-3-4-5-6-7-8-9-10-11-12-13-14-15-0-1 2-3-4 ... 31-0-1 2-3-4-5-6-7-8-... 3 3-0-1-2 3-4-5-6-7-0-1-2 3-4-5-6-7-8-9-10-11-12-13-14-15-0-1-2 3-4-5 ... 0-1-2 3-4-5-6-7-8-9-... 4 4-5-6-7-0-1-2-3 4-5-6-7-8-9-10-11-12-13-14-15-0-1-2-3 4-5-6 ... 1-2-3 4-5-6-7-8-9-10-... 5 5-6-7-0-1-2-3-4 5-6-7-8-9-10-11-12-13-14-15-0-1-2-3-4 5-6-7 ... 2-3-4 5-6-7-8-9-10-11-... 6 6-7-0-1-2-3-4-5 6-7-8-9-10-11-12-13-14-15-0-1-2-3-4-5 6-7-8 ... 3-4-5 6-7-8-9-10-11-12-... 7 7-0-1-2-3-4-5-6 7-8-9-10-11-12-13-14-15-0-1-2-3-4-5-6 7-8-9 ... 4-5-6 7-8-9-10-11-12-13-... ... ... ... ... 14 14-15-0-1-2-3-4-5-6-7-8-9-10-11-12-13 14-15-16-...-11-12-13 14-15-16-17-18-19-20-... 15 15-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14 15-16-17...-12-13-14 15-16-17-18-19-20-21-... ... ... ... 30 30-31-0-...-27-28-29 30-31-32-33-34-... 31 31-0-1-... -28-29-30 31-32-33-34-35-... 1No 0 0-1-2-3 0-1-2-3-4-5-6-7 0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 0-1-2-...-29-30-31 0-1-2-3-4-5-6-... 1 1-2-3-4 1-2-3-4-5-6-7-8 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16 1-2-3-...-30-31-32 1-2-3-4-5-6-7-... 2 2-3-4-5 2-3-4-5-6-7-8-9 2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17 2-3-4-...-31-32-33 2-3-4-5-6-7-8-... 3 3-4-5-6 3-4-5-6-7-8-9-10 3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18 3-4-5-...-32-33-34 3-4-5-6-7-8-9-... 4 4-5-6-7-8-9-10-11 4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19 4-5-6-...-33-34-35 4-5-6-7-8-9-10-... 5 5-6-7-8-9-10-11-12 5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20 5-6-7-...-34-35-36 5-6-7-8-9-10-11-... 6 6-7-8-9-10-11-12-13 6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21 6-7-8-...-35-36-37 6-7-8-9-10-11-12-... 7 7-8-9-10-11-12-13-14 7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22 7-8-9-...-36-37-38 7-8-9-10-11-12-13-... ... ... ... ... 14 14-15-16-17-18-...-23-24-25-26-27-28-29 14-15-16-...43-44-45 14-15-16-17-18-19-20-... 15 15-16-17-18-19-...-24-25-26-27-28-29-30 15-16-17-...-44-45-46 15-16-17-18-19-20-21-... ... ... ... 30 30-31-32-...-59-60-61 30-31-32-33-34-35-36-... 31 31-32-33-...-60-61-62 31-32-33-34-35-36-37-... |
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