UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 305
UPD78F0413GA-GAM-AX
Manufacturer Part Number
UPD78F0413GA-GAM-AX
Description
8BIT UC, 32K FLASH, 1KB RAM, LCD
Manufacturer
NEC
Datasheet
1.UPD78F0413GA-GAM-AX.pdf
(562 pages)
Specifications of UPD78F0413GA-GAM-AX
Controller Family/series
UPD78F
No. Of I/o's
30
Ram Memory Size
1024Byte
Cpu Speed
10MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
32KB
Oscillator Type
External, Internal
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12.4.3 A/D converter operation mode
ANI5 by the analog input channel specification register (ADS) and A/D conversion is executed.
(1) A/D conversion operation
A/D conversion
The operation mode of the A/D converter is the select mode. One channel of analog input is selected from ANI0 to
By setting bit 7 (ADCS) of the A/D converter mode register (ADM) to 1, the A/D conversion operation of the
voltage, which is applied to the analog input pin specified by the analog input channel specification register
(ADS), is started.
When A/D conversion has been completed, the result of the A/D conversion is stored in the A/D conversion result
register (ADCR), and an interrupt request signal (INTAD) is generated. When one A/D conversion has been
completed, the next A/D conversion operation is immediately started.
If ADS is rewritten during A/D conversion, the A/D conversion operation under execution is stopped and restarted
from the beginning.
If 0 is written to ADCS during A/D conversion, A/D conversion is immediately stopped.
conversion result immediately before is retained.
Remarks 1. n = 0 to 5
ADCRH
ADCR,
INTAD
CHAPTER 12 10-BIT SUCCESSIVE APPROXIMATION TYPE A/D CONVERTER ( PD78F041x only)
2. m = 0 to 5
Rewriting ADM
ADCS = 1
ANIn
Figure 12-13. A/D Conversion Operation
User’s Manual U18698EJ1V0UD
ANIn
ANIn
Conversion is stopped
Conversion result immediately
before is retained
Rewriting ADS
ANIn
ANIn
ANIm
ANIm
ADCS = 0
ANIm
At this time, the
Stopped
Conversion result
immediately before
is retained
305
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