CHAPTER 9 A/D CONVERTER
User’s Manual U11969EJ3V0UM00
309
(2) 4-buffer mode (A/D trigger select: 4-buffer)
The A/D converter converts one analog input four times and stores the results in four ADCRn registers. (Refer
to Table 9-2, Figure 9-7.) When A/D conversion ends four times, an INTAD interrupt is generated and the
A/D conversion terminates.
When 1 is written to the CE bit of the ADM0 register, A/D conversion is ended.
This mode is suitable for applications which calculate the average of the A/D conversion result.
Table 9-2. Correspondence between Analog Input Pin and ADCRn Register
(4-buffer mode (A/D trigger select 4-buffer))
Analog Input
A/D Conversion Results Register
ANI0 to ANI3/ANI8 to ANI11
ADCR0 (First time)
ADCR1 (Second time)
ADCR2 (Third time)
ADCR3 (Fourth time)
ANI4 to ANI17/ANI12 to ANI15
ADCR4 (First time)
ADCR5 (Second time)
ADCR6 (Third time)
ADCR7 (Fourth time)
Figure 9-7. Example of 4-Buffer Mode (A/D trigger select 4-buffer) Operation
ANI0
ANI1
ANI2
ANI3
ANI4
ANI5
ANI6
ANI7
ANI8
ANI9
ANI10
ANI11
ANI12
ANI13
ANI14
ANI15
ADCR0
ADCR1
ADCR2
ADCR3
ADCR4
ADCR5
ADCR6
ADCR7
A/D Converter
ADM0
(
×
4)
(
×
4)
Содержание V854 UPD703006
Страница 2: ...2 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 22: ...22 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 80: ...80 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 134: ...134 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 156: ...156 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 294: ...294 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 320: ...320 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 324: ...324 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 336: ...336 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 376: ...376 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 382: ...382 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 394: ...394 User s Manual U11969EJ3V0UM00 MEMO ...
Страница 396: ...396 User s Manual U11969EJ3V0UM00 MEMO ...