29-20
MB86R02 ‘Jade-D’ Hardware Manual V1.64
29.7.9 Bus clock frequency register (I2CxBCFR)
Address
ch0
:
FFF 18h
ch1
:
FFF 18h
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name
(Reserved)
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Initial value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
(Reserved)
(Reserved)
FS[3:0]
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R/W R/W R/W R/W
Initial
valu
e
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Bit 7 and 4: Unused
The value is always "0000" on reads.
Bit 3-0: FS3-0 (Bus Clock Frequency Select 3-0)
Selects the frequency of the bus clock to be used. Characteristics such as noise filters are set
using this register. A standard setting value is shown below however adjustment might be
required depending on the I
2
C buffer characteristics and noise state on the I
2
C bus.
FS3
FS2
FS1
FS0
Frequency [MHz]
0
0
0
0
Setting prohibited
0
0
0
1
14 or more ~ Less than 20
0
0
1
0
20 or more ~ Less than 40
0
0
1
1
40 or more ~ Less than 60
0
1
0
0
–
0
1
0
1
–
0
1
1
0
–
0
1
1
1
–
1
0
0
0
–
1
0
0
1
–
1
0
1
0
–
1
0
1
1
–
1
1
0
0
–
1
1
0
1
–
1
1
1
0
–
1
1
1
1
–
Summary of Contents for MB86R02
Page 24: ...MB86R02 Jade D Hardware Manual V1 64 ...
Page 76: ...3 2 MB86R02 Jade D Hardware Manual V1 64 Figure 3 1 Memory map 1 ...
Page 77: ...3 3 MB86R02 Jade D Hardware Manual V1 64 Figure 3 2 Memory map 2 ...
Page 167: ...8 8 MB86R02 Jade D Hardware Manual V1 64 ...
Page 214: ...11 7 MB86R02 Jade D Hardware Manual V1 64 15 16 cycles initial value ...
Page 497: ...18 139 MB86R02 Jade D Hardware Manual V1 64 VSYNC is output 1 dot clock faster than HSYNC ...
Page 678: ......
Page 680: ......
Page 682: ...22 2 MB86R02 Jade D Hardware Manual V1 00 FUJITSU PROPRIETARY AND CONFIDENTIAL ...
Page 811: ...29 24 MB86R02 Jade D Hardware Manual V1 64 ...