EMIF
7.3.5.8
SDRAM_TIM_1_SHDW Register (offset = 1Ch) [reset = 0h]
SDRAM_TIM_1_SHDW is shown in
and described in
.
Figure 7-98. SDRAM_TIM_1_SHDW Register
31
30
29
28
27
26
25
24
Reserved
reg_t_rp_shdw
reg_t_rcd_shdw
R-0h
R/W-0h
R/W-0h
23
22
21
20
19
18
17
16
reg_t_rcd_shdw
reg_t_wr_shdw
reg_t_ras_shdw
R/W-0h
R/W-0h
R/W-0h
15
14
13
12
11
10
9
8
reg_t_ras_shdw
reg_t_rc_shdw
R/W-0h
R/W-0h
7
6
5
4
3
2
1
0
reg_t_rc_shdw
reg_t_rrd_shdw
reg_t_wtr_shdw
R/W-0h
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 7-118. SDRAM_TIM_1_SHDW Register Field Descriptions
Bit
Field
Type
Reset
Description
31-29
Reserved
R
0h
28-25
reg_t_rp_shdw
R/W
0h
Shadow field for reg_t_rp.
This field is loaded into reg_t_rp field in SDRAM Timing 1 register
when SIdleAck is asserted.
24-21
reg_t_rcd_shdw
R/W
0h
Shadow field for reg_t_rcd.
This field is loaded into reg_t_rcd field in SDRAM Timing 1 register
when SIdleAck is asserted.
20-17
reg_t_wr_shdw
R/W
0h
Shadow field for reg_t_wr.
This field is loaded into reg_t_wr field in SDRAM Timing 1 register
when SIdleAck is asserted.
initialization sequence will be started when the value of this field is
changed from the previous value and the EMIF is in DDR2 mode.
16-12
reg_t_ras_shdw
R/W
0h
Shadow field for reg_t_ras.
This field is loaded into reg_t_ras field in SDRAM Timing 1 register
when SIdleAck is asserted.
11-6
reg_t_rc_shdw
R/W
0h
Shadow field for reg_t_rc.
This field is loaded into reg_t_rc field in SDRAM Timing 1 register
when SIdleAck is asserted.
5-3
reg_t_rrd_shdw
R/W
0h
Shadow field for reg_t_rrd.
This field is loaded into reg_t_rrd field in SDRAM Timing 1 register
when SIdleAck is asserted.
2-0
reg_t_wtr_shdw
R/W
0h
Shadow field for reg_t_wtr.
This field is loaded into reg_t_wtr field in SDRAM Timing 1 register
when SIdleAck is asserted.
432
Memory Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated