Distributed mode reduces contention from Refresh
{"Image DocumentName": "Distributed mode reduces contention from Refresh", "Image ImageDescription": "Refresh Modes. Burst Mode: Memory unavailable until all rows finish refresh. Distributed Mode: 8K refresh pulses in 64ms. Refresh. 64ms. 64ms. Refresh. The 1st is the burst mode: (click) In this mode, once the refresh operation starts, it finishes ONLY when all rows in the memory finish refreshing. In such a stop the world mode , the memory gets tied up for a long time. This works fine for banks with a few rows. However, for banks with a large number of rows, the memory becomes unavailable for a few milliseconds, causing unacceptable latency. (click) In the JEDEC specified distributed mode, Instead of providing one pulse within 64ms, 8K pulses are given within 64ms with each pulse refreshing a small portion of the memory which we call a refresh bundle. Reads can be serviced between refresh pulses and this reduces contention. Distributed mode reduces contention from Refresh.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}