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Fujitsu FR81S User Manual

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CHAPTER 44: 12-BIT A/D CONVERTER 
 
 
5. Operation 
 
FUJITSU SEMICONDUCTOR LIMITED 
CHAPTER
 : 12-BIT A/D CONVERTER 
FUJITSU SEMICONDUCTOR CONFIDENTIAL 
94 
Figure 5-18 Stop scan conversion when conversion count of each channel is specified (In 
case of data protection function effective) 
stop
During 
conversion(N ch)
(The first)
During 
conversion(N+1 
ch)
(The first)
During 
conversion(N+2 
ch)
(The second)
During 
conversion(N+2 
ch)
(The first)
During 
conversion(N 
ch)
(The first)
Conversion frequency 
completion flag
(ADEOCF.ECOF
N
)
Invalid data
Conversion result(The 
first)
Conversion result(The second)
Invalid data
Conversion result(The first)
Invalid data
Conversion result(The 
second)
Conversion result(The first)
Software Activate 
request (n+1 channel)
A/D conversion
Activation trigger
Software Activate 
request (n channel)
Software Activate 
request (n+2 channel)
During 
conversion(N ch)
(The second)
Conversion frequency 
completion flag
(ADEOCF.ECOF
N+1
)
Conversion frequency 
completion flag
(ADEOCF.ECOF
N+2
)
Protection state flag
(ADPRT.PRTF
N
)
Protection state flag
(ADPRT.PRTF
N+1
)
Protection state flag
(ADPRT.PRTF
N+2
)
A/D data register
(ADTCD
N
.D11～D0)
A/D dataregister
(ADTCD
N+1
.D11～D0)
A/D data register
(ADTCD
N+2
.D11～D0)
Scanning conversion completion 
interruption factor flag
(ADSCANS.SCINT)
At continuous execution of a different start channel
The activate request of the next start channel is output regardless with the 
state of the data protection. 
When the final start channel processing to be 
scanned is completed, the scanning conversion is 
dormant. 
stop
stop
← Protection 
state release
← Protection 
state release
← Protection 
state release
← Protection 
state release
← Protection 
state release
The analog to digital conversion is restarted by the data 
protection state release at continuous execution in the 
same start channel. 
Software factor start (N, 
N+1 and N+2 channels 
simultaneous)
rest
← Factor clear
Software factor start 
(individual or plurals of N, 
N+1, and N+2)
The scanning conversion is restarted by 
the start demand generation. 
[Channel composition information]
　　
Start channel N, N+1, and N+2: It is a stop scanning conversion mode, and is conversion frequency specification scanning conversion 
execution permission, and it are the repetition mode and the security function, and is a software start (The N?N+2 channel is converted the 
scanning), and is a continuous conversion frequency: Start channel N+2 = twice start channel N+1 = once start channel N= twice
 
 
MB91520 Series
MN705-00010-1v0-E
1897