From f42f95f2179ec4dd3b9aa09580ab770646ff35b0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=89der=20F=2E=20Zulian?= Date: Thu, 12 Jul 2018 09:26:01 +0200 Subject: [PATCH] Doc improved --- README.md | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/README.md b/README.md index 1e582d5c..d6540926 100644 --- a/README.md +++ b/README.md @@ -791,8 +791,8 @@ Below, the sub-configurations are listed and explained. - ControllerCoreRefMode (unsigned int) - Refresh mode. 1: 1X, 2: 2X, 4: 4X. Refresh period is tREFI, tREFI/2, tREFI/4, respectively. Number of rows per refresh is affected. Maximum - values for pull-in and postpone affected. There is a refresh cycle time - tRFC for each mode that comes from the memory specification. + values for pull-in and postpone are affected. There are different values + of tRFC for each mode that come from memory specifications. - *ControllerCoreRefForceMaxPostponeBurst* (boolean) - "1": always postpone, resulting in a ControllerCoreRefMaxPostponed burst - "0": normal operation @@ -876,15 +876,14 @@ Below, the sub-configurations are listed and explained. - Timing can be changed to explore optimum row granular refresh (ORGR) -** Refresh modes ** +**Refresh modes** -Currently the refresh modes available are 1X, 2X, 4X. The default refresh mode -is fixed 1X mode where refresh commands should be issued with the normal rate, -i.e., tREFI. The duration of each refresh command is the normal refresh cycle -time tRFC. In 2X mode Refresh commands are issued to the DRAM at the double -frequency (tREFI/2). In 4X mode Refresh commands are issued to the DRAM at the -quadruple frequency (tREFI/4). There is a tRFC value for each mode that comes -from the memory specification. +The default refresh mode is fixed 1X mode where refresh commands should be +issued with the normal rate, i.e., tREFI. The duration of each refresh command +is the normal refresh cycle time tRFC. In 2X mode Refresh commands are issued +to the DRAM at the double frequency (tREFI/2). In 4X mode Refresh commands are +issued to the DRAM at the quadruple frequency (tREFI/4). There are different +values of tRFC for each mode that come from memory specifications. The number of refresh commands in a tREFI is multiplied by two in 2X mode and by four in 4X mode. The maximum number of refresh commands that can be