EMIF
7.3.5.30 RDWR_LVL_RMP_WIN Register (offset = D4h) [reset = 0h]
Read-Write Leveling Ramp Window Register
Read-Write Leveling Ramp Window Register is shown in
and described in
Figure 7-120. Read-Write Leveling Ramp Window Register
31
30
29
28
27
26
25
24
Reserved
R-
23
22
21
20
19
18
17
16
Reserved
R-
15
14
13
12
11
10
9
8
Reserved
REG_RDWRLVLINC_RMP_WIN
R-
R-
7
6
5
4
3
2
1
0
REG_RDWRLVLINC_RMP_WIN
R-
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 7-140. Read-Write Leveling Ramp Window Register Field Descriptions
Bit
Field
Type
Reset
Description
31-13
Reserved
R
Reserved.
12-0
REG_RDWRLVLINC_RM
R
Incremental leveling ramp window in number of refresh periods.
P_WIN
The value programmed is minus one the required value.
Refresh period is defined by reg_refresh_rate in SDRAM Refresh
Control register.
455
SPRUH73H – October 2011 – Revised April 2013
Memory Subsystem
Copyright © 2011–2013, Texas Instruments Incorporated