29-7
MB86R02 ‘Jade-D’ Hardware Manual V1.64
29.7.2 Bus status register (I2CxBSR)
Address
ch0
:
FFF 00h
ch1
:
FFF 00h
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)
BB
RSC
AL
LRB
TRX
AAS
GCA
FBT
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Initial
valu
e
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
All bits of this register are cleared when the EN bit of I2CxCCR is "0".
Bit 7: BB (bus busy)
This bit shows I
2
C bus state.
BB
Status
0
Stop condition is detected
1
Start condition is detected (but is in use)
Bit 6: RSC (Repeated Start Condition)
Repeated start condition detecting bit.
RSC
State
0
Repeated start condition is not detected
1
Start condition is detected again during bus is in use
This bit is cleared by writing "0" to the INT bit. Start condition detection at bus stop and stop
condition detection as well as addressing are not performed by the slave.
Bit 5: AL (Arbitration Lost)
Arbitration lost detection bit
AL
State
0
Arbitration lost is not detected
1
Arbitration lost occurs during master transmission, or "1" is written to MSS bit
while other systems are using bus
This bit is cleared by writing "0" to the INT bit.
Restrictions:
In a multimaster environment, please prohibit other masters from transmitting general
call addresses simultaneously with this module, as well as using 'arbitration lost' for this
module at the second byte or later.
Содержание MB86R02
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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 ...
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