tmp19a61f10xbg TOSHIBA Semiconductor CORPORATION, tmp19a61f10xbg Datasheet - Page 438

• Manufacturer Part Number: tmp19a61f10xbg
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

16.3.4
A/D Conversion Modes and A/D Conversion Completion Interrupts
(1) Normal A/D conversion
For A/D conversion, the following four operation modes are supported. For normal A/D
conversion, an operation mode can be selected by setting ADAMOD0<2 ： 1> to an
appropriate setting. For top-priority A/D conversion, the fixed channel single conversion
mode is automatically selected, irrespective of the ADAMOD0<2 ： 1> setting.
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Fixed channel single conversion mode
If ADAMOD0 <REPEAT, SCAN> is set to "00," A/D conversion is performed in the fixed
channel single conversion mode.
In this mode, A/D conversion is performed once for one channel selected. After A/D
conversion is completed, ADAMOD0<EOCF> is set to "1," ADAMOD0<ADBF> is cleared
to "0," and the interrupt request INTAD is generated. <EOCF> is cleared to "0" upon read.
Channel scan single conversion mode
If ADAMOD0 <REPET, SCAN> is set to "01," A/D conversion is performed in the channel
scan single conversion mode.
In this mode, A/D conversion is performed once for each scan channel selected. After
A/D scan conversion is completed, ADAMOD0<EOCF> is set to "1," ADAMOD0<ADBF>
is cleared to "0," and the interrupt request INTAD is generated. <EOCF> is cleared to "0"
upon read.
Fixed channel repeat conversion mode
If ADAMOD0<REPEAT, SCAN> is set to "10," A/D conversion is performed in fixed
channel repeat conversion mode.
In this mode, A/D conversion is performed repeatedly for one channel selected. After A/D
conversion is completed, ADAMOD <EOCF> is set to "1." ADAMOD0 <ADBF> is not
cleared to "0." It remains at "1." The timing with which the interrupt request INTAD is
generated can be selected by setting ADAMOD0 <ITM1:0> to an appropriate setting.
<EOCF> is set with the same timing as this interrupt INTAD is generated.
conversion is completed. In this case, the conversion results are always stored in the
storage register ADAREG08. After the conversion result is stored, EOCF changes to "1."
With <ITM1:0> set to "01," an interrupt request is generated each time four A/D
<EOCF> is cleared to "0" upon read.
With <ITM1:0> set to "00," an interrupt request is generated each time one A/D
An operation mode is selected with ADMOD0<REPEAT, SCAN>. As A/D conversion
starts, ADAMOD0<ADBFN> is set to "1." When specified A/D conversion is completed,
the A/D conversion completion interrupt (INTAD) is generated, and ADMOD0<EOCF>
showing the completion of A/D conversion is set to "1." If <REPEAT>="0," <ADBFN>
returns to "0" concurrently with the setting of EOCF. If <REPEAT> is set to "1," <ADBFN>
remains at "1" and A/D conversion continues.
Fixed channel single conversion mode
Channel scan single conversion mode
Fixed channel repeat conversion mode
Channel scan repeat conversion mode
TMP19A61 (rev1.0)16-437
TMP19A61