DDR4 SDRAM - Understanding the Basics #2
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The Tip right above DRAM Page Size has a typo: And in the section under DRAM Size Calculation you're missing an s in two places: |
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There is a typo: Original Text: Suggestion: |
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There is a typo at "Partial Command Truth-Table": it should be "We_n/A14", not A4 I guess. |
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Is there a mistake in "DRAM Size Calculation" section, the first example "/* 4Gb x4 Device */"? /* 4Gb x4 Device */ Total DRAM Capacity = Total DRAM Capacity = Looking back at this, perhaps the first comment was intended to be "/* 1Gb x4 Device /" ? Or maybe it should be "/ 4Gb total from 1Gb x4 device*/"? Or maybe I am misunderstanding. Thank you so much for the write-up! It is extremely helpful and well written. |
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Just started learning about DDR. Can anyone explain if the so called "Page break" and "bank collision" the same? if not, what is the difference? Are they both causing performance penalty? |
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Please use this Discussions thread for questions and comments on article https://www.systemverilog.io/ddr4-basics
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