H838776 Datasheet, PDF (417/594 Pages) Renesas Technology Corp – 12 Input / 9 Output Video Switch Matrix with Input Clamp, Input Bias Circuitry, and Output Drivers

Section 18 A/D Converter
Start
Set A/D conversion speed and input channel
Disable A/D conversion end interrupt
Start A/D conversion
Read ADSR
No
ADSF = 0?
Yes
Read ADRR data
Yes
Perform A/D conversion?
No
End
Figure 18.4 Flowchart of Procedure for Using A/D Converter (Polling by Software)
Start
Set A/D conversion speed and input channel
Enable A/D conversion end interrupt
Start A/D conversion
A/D conversion end
interrupt generated?
No
Yes
Clear IRRAD bit in IRR2 to 0
Read ADRR data
Yes
Perform A/D conversion?
No
End
Figure 18.5 Flowchart of Procedure for Using A/D Converter (Interrupts Used)
Rev. 1.00 Dec. 18, 2006 Page 395 of 568
REJ09B0348-0100