M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 551

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.2 Configuration
The block diagram is shown below.
Note
Remark
ANI26
ANI27
ANI20
ANI21
ANI22
ANI23
ANI24
ANI25
Cautions 1. If there is noise at the analog input pins (ANI2n) or at the A/D converter power supply
Remark
AV
AV
Note
Note
DD
SS
V850E/IA4 only
n = 0 to 7
2. Do not apply a voltage outside the AV
For details on the power supply connection specifications of A/D converter 2, see 12.2
Configuration.
voltage pin (AV
to 5, V850E/IA4: n = 0 to 7).
Software processing will be needed to avoid a negative effect on the system from this
illegal conversion result.
An example of this software processing is shown below.
• Take the average result of a number of A/D conversions and use that as the A/D
• Execute a number of A/D conversions consecutively and use those results, omitting
• If an A/D conversion result that is judged to have generated a system malfunction is
converter 2 input pins.
conversion result.
any exceptional results that may have been obtained.
obtained, be sure to recheck the system malfunction before performing malfunction
processing.
First-order ΔΣ modulator
Figure 13-1. Block Diagram of A/D Converter 2
DD
), that noise may generate an illegal conversion result (V850E/IA3: n = 0
CHAPTER 13 A/D CONVERTER 2
User’s Manual U16543EJ4V0UD
A/D2 conversion result register n
Digital filter
SS
(ADA2CRn/ADA2CRnH)
to AV
Conversion register
(SAR)
DD
range to the pins that are used as A/D
Controller
INTAD2
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