13-12
MB86R02 ‘Jade-D’ Hardware Manual V1.64
13.6.8 DRAM CTRL SET TIME2 register (DRCST2)
This register sets access timing to DRAM. It should be set by the correlation between DRAM
spec and inner clock frequency.
Address
F300_0000
H
+ 0C
H
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
-
TRFC
-
-
TRRD
-
TWR
R/W
R/W
R/W
R/W R/W
R/W
R/W
R/W
Initial value
X
1
1
0
1
0
1
1
X
X
1
1
X
1
0
1
Bit field
Description
No.
Name
15-12
(Reserved)
Reserved bits.
Write access is ignored.
11-8
TRFC
Auto. refresh command period (tRFC : Auto. refresh to active/Auto. refresh command
time )
Bit[11:8]
Cycle time (number of clock)
0000
4
0001
5
0010
6
0011
7
0100
8
0101
9
0110
10
0111
11
1000
12
1001
13
1010
14
1011
15
(Initial value)
1100
16
1101
17
1110
18
1111
19
7-6
(Reserved)
Reserved bits.
Write access is ignored.
5-4
TRRD
RAS to RAS bank active delay time (tRRD : Active bank A to active bank B command
period)
Active command interval for when continuously activating RAS in different bank is set
in cycle.
Bit[5:4]
Cycle time (number of clock)
11
3
(Initial value)
Others
-
Reserved (setting prohibited)
3
(Reserved)
Reserved bit.
Write access is ignored.
Содержание MB86R02
Страница 24: ...MB86R02 Jade D Hardware Manual V1 64 ...
Страница 76: ...3 2 MB86R02 Jade D Hardware Manual V1 64 Figure 3 1 Memory map 1 ...
Страница 77: ...3 3 MB86R02 Jade D Hardware Manual V1 64 Figure 3 2 Memory map 2 ...
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Страница 214: ...11 7 MB86R02 Jade D Hardware Manual V1 64 15 16 cycles initial value ...
Страница 216: ...11 9 MB86R02 Jade D Hardware Manual V1 64 0000011 b 4MB 0111111 b 64MB 0000111 b 8MB 1111111 b 128MB ...
Страница 304: ...16 5 MB86R02 Jade D Hardware Manual V1 64 The flow of a read action is shown below Figure 16 5 Read process flow ...
Страница 497: ...18 139 MB86R02 Jade D Hardware Manual V1 64 VSYNC is output 1 dot clock faster than HSYNC ...
Страница 558: ...18 200 MB86R02 Jade D Hardware Manual V1 64 017 S S S S S S S S Int Frac 060 018 dBdy S S S S S S S S Int Frac ...
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Страница 682: ...22 2 MB86R02 Jade D Hardware Manual V1 00 FUJITSU PROPRIETARY AND CONFIDENTIAL ...
Страница 684: ...22 2 MB86R02 Jade D Hardware Manual V1 00 FUJITSU PROPRIETARY AND CONFIDENTIAL Figure 22 14 TCON flow diagram ...
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Страница 852: ...34 13 MB86R02 Jade D Hardware Manual V1 64 3 1LSB VFST VZT 1022 INLn 1LSBxn VZT Vn 1LSB DNLn Vn 1 Vn 1LSB 1 ...
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