ML610471/472/473/Q471/Q472/Q473 User's Manual
Chapter 17 RC Oscillation Type A/D Converter
17-17
17.3.4 Monitoring RC Oscillation
The RC oscillator clock (RCCLK) can be output using the secondary function of the P35 pin of Port 3. See Chapter 14,
“Port 3,” for the details of the secondary function of P35.
Monitoring RC oscillation is useful for checking the characteristics of the RC oscillator circuit. That is, the relationship
between a sensor, such as a thermistor, and the oscillation frequency can be measured. For instance, the coefficient for
conversion from the above-described nA1 value to a temperature indication value can be obtained by checking the
relationship between the ambient temperature of a thermistor-incorporated RC oscillator circuit, the oscillation frequency
with thermistor RT1, and the oscillation frequency with reference resistor RS1.
Note:
P35 (RCM) is a monitor pin for oscillation clock.
Please use P35 (RCM) for the evaluation purpose and disable the output while operating in an actual application to
minimize the noise.
Summary of Contents for ML610472
Page 12: ...Chapter 1 Overview...
Page 38: ...Chapter 2 CPU and Memory Space...
Page 44: ...Chapter 3 Reset Function...
Page 48: ...Chapter 4 MCU Control Function...
Page 62: ...Chapter 5 Interrupts...
Page 82: ...Chapter 6 Clock Generation Circuit...
Page 94: ...Chapter 7 Time Base Counter...
Page 105: ...Chapter 8 Capture...
Page 114: ...Chapter 9 Timer...
Page 133: ...Chapter 10 Watchdog Timer...
Page 141: ...Chapter 11 UART...
Page 164: ...Chapter 12 Port 0...
Page 173: ...Chapter 13 Port 2...
Page 180: ...Chapter 14 Port 3...
Page 188: ...Chapter 15 Port 4...
Page 199: ...Chapter 16 Port 6...
Page 205: ...Chapter 17 RC Oscillation Type A D Converter...
Page 225: ...Chapter 18 LCD Drivers...
Page 243: ...Chapter 19 Power Supply Circuit...
Page 245: ...Chapter 20 uEASE Flash Writer System...
Page 249: ...Chapter 21 Software Development...
Page 258: ...Appendixes...
Page 280: ...Revision History...