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Éder F. Zulian
2018-07-12 09:26:01 +02:00
parent c2a0e9ddd1
commit f42f95f217
1 changed files with 9 additions and 10 deletions
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README.md
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@@ -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