Fujitsu FR81S User Manual

CHAPTER 44: 12-BIT A/D CONVERTER 

 

 

5. Operation 

 

FUJITSU SEMICONDUCTOR LIMITED 

 : 12-BIT A/D CONVERTER 

FUJITSU SEMICONDUCTOR CONFIDENTIAL 

86 

The activation request mode is explained. 

The activation request mode of each activation channel can be set. The activation request mode is two (the 

single mode and the repeat mode). The mode is set by the RPT bit of A/D activation trigger control status 

register (ADTCS). 



 

In single mode, activation is requested once with one activation factor. The A/D conversion is done 

once, and the activation request is released by the A/D conversion completion. 



 

In repeat mode, activation is requested continuously with one activation factor. The A/D conversion is 

repeatedly executed, and the activation request continues until the repeat mode is released. 

 

Figure 5-12 Activation request mode 

Activation factor

Ø 

Single mode: Activation is requested once with one activation factor.

Activation request

A/D conversion

During conversion

stop

During conversion

stop

stop

Ø 

Repeat mode: Activation is requested continuously (until the repeat mode is released) with one activation factor.

Activation factor

Activation request

A/D conversion

During conversion

stop

During conversion

stop

Mode setting

Repeat

Single

During conversion

Activation trigger

Activation trigger

 

 

MN705-00010-1v0-E

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