EMIF
7.3.5.38 RD_WR_EXEC_THRSH Register (offset = 120h) [reset = 0h]
Read Write Execution Threshold Register
Read Write Execution Threshold Register is shown in
and described in
.
Figure 7-128. Read Write Execution Threshold 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_WR_THRSH
R-
R/W-
7
6
5
4
3
2
1
0
Reserved
REG_RD_THRSH
R-
R/W-
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 7-148. Read Write Execution Threshold Register Field Descriptions
Bit
Field
Type
Reset
Description
31-13
Reserved
R
Reserved.
12-8
REG_WR_THRSH
R/W
Write Threshold.
Number of SDRAM write bursts after which the EMIF arbitration will
switch to executing read commands.
The value programmed is always minus one the required number.
7-5
Reserved
R
Reserved.
4-0
REG_RD_THRSH
R/W
Read Threshold.
Number of SDRAM read bursts after which the EMIF arbitration will
switch to executing write commands.
The value programmed is always minus one the required number.
466
Memory Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated