PD17012_15 Datasheet, PDF (152/320 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

µPD17012, 17P012
13.4 Comparison Timing Chart
The ADCEN flag is automatically cleared to 0 when the comparison operation has been completed.
Therefore, because the ADCEN flag is detected after it has been set, and the comparison result (ADCCMP flag)
is read when the ADCEN flag has been cleared, one compare time is equal to three instruction execution times (6
µs).
Figure 13-7 shows the timing chart.
Figure 13-7. Timing Chart of A/D Converter’s Compare Operation
Instruction cycle
Sample & hold
ADCEN flag
ADCCMP flag
Comparison result
13.5 Performance of A/D Converter
The performance of the A/D converter is as follows.
Parameter
Resolution
Input voltage range
Quantization error
Over range
Offset, gain, and
non linearity errors
Performance
6 bits
0-VDD
± ¹ LSB
2
62.5 _{× VDD}
64
± ³ LSB^Note
2
Note Including quantization error.
150
Data Sheet U10101EJ4V0DS