r5s72060w200fpv Renesas Electronics Corporation., r5s72060w200fpv Datasheet - Page 265

• Manufacturer Part Number: r5s72060w200fpv
• Description: 32-bit Risc Microcomputer Superhtm Risc Engine Family / Sh7200 Series
• Manufacturer: Renesas Electronics Corporation.

• CS3WCR
Initial value:
Initial value:
Bit
31 to 15
14, 13
Note:
R/W:
R/W:
Bit:
Bit:
*
If both areas 2 and 3 are specified as SDRAM, WTRP[1:0], WTRCD[1:0], TRWL[1:0], and WTRC[1:0] bit settings are
used in both areas in common.
31
15
Bit Name

WTRP[1:0]*
R
R
0
0
-
-
R/W
WTRP[1:0]*
30
14
R
0
0
-
R/W
29
13
R
0
0
-
Initial
Value
All 0
00
28
12
R
R
0
0
-
-
WTRCD[1:0]*
R/W
27
11
R
0
0
-
R/W
R
R/W
R/W
26
10
R
0
1
-
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Number of Auto-Precharge Completion Wait Cycles
Specify the number of minimum precharge completion
wait cycles as shown below.
•
•
•
•
•
The setting for areas 2 and 3 is common.
00: No cycle
01: 1 cycle
10: 2 cycles
11: 3 cycles
25
R
R
0
9
0
From the start of auto-precharge and issuing of
ACTV command for the same bank
From issuing of the PRE/PALL command to issuing
of the ACTV command for the same bank
Till entering the power-down mode or deep power-
down mode
From the issuing of PALL command to issuing REF
command in auto refresh mode
From the issuing of PALL command to issuing
SELF command in self refresh mode
-
-
R/W
24
R
0
8
A3CL[1:0]
1
-
R/W
23
R
0
7
0
-
Rev. 2.00 Dec. 09, 2005 Page 241 of 1152
22
R
R
0
6
0
-
-
Section 8 Bus State Controller (BSC)
21
R
R
0
5
0
-
-
R/W
TRWL[1:0]*
20
R
0
4
0
-
R/W
19
R
0
3
0
-
REJ09B0191-0200
18
R
R
0
2
0
-
-
R/W
WTRC[1:0]*
17
R
0
1
0
-
R/W
16
R
0
0
0
-