
ML610Q421/ML610Q422/ML610421 User’s Manual
Chapter 6 Clock Generation Circuit
6 – 8
6.3.2
High-Speed Clock
Setting of the OSCM1 and OSCM0 bits of the frequency control register 0 (FCON0) allows selection of the 500 kHz
RC oscillation mode, crysta/ceramic oscillation mode, built-in PLL (Phase Locked Loop) oscillation mode, or external
clock input mode for the high-speed clock generation circuit.
6.3.2.1
500 kHz RC Oscillation
In RC oscillation mode (OSCM0 = “0”, OSCM1 = “0”), supply of OSCLK (high-speed oscillation clock) is started
when RC oscillation clock pulse count reaches 128 after oscillation is enabled (ENOSC is set to “1”).
In 500 kHz RC oscillation mode, both the P10/OSC0 pin and the P11/OSC1 pin can be used as general-purpose input
ports.
Figure 6-4 shows the circuit configuration in RC oscillation mode.
Figure 6-4 Circuit Configuration in RC Oscillation Mode
Notes:
−
The RC oscillation mode is allowed within the range of V
DD
= 1.3 V to 3.6 V.
−
After system reset mode is released, supply of OSCLK starts after the RC oscillation clock pulse count reaches 8192.
After release of a STOP mode, supply of OSCLK starts.
STOP mode
ENOSC (Enables oscillation)
OSCLK (High-speed oscillation clock)
V
DDL
RC oscillation
circuit
Count: 128
Содержание ML610421
Страница 1: ...ML610Q421 ML610Q422 ML610421 User s Manual Issue Date Feb 9 2015 FEUL610Q421 06...
Страница 15: ...Chapter 1 Overview...
Страница 44: ...Chapter 2 CPU and Memory Space...
Страница 49: ...Chapter 3 Reset Function...
Страница 53: ...Chapter 4 MCU Control Function...
Страница 69: ...Chapter 5 Interrupts INTs...
Страница 93: ...Chapter 6 Clock Generation Circuit...
Страница 110: ...Chapter 7 Time Base Counter...
Страница 121: ...Chapter 8 Capture...
Страница 129: ...Chapter 9 1 kHz Timer 1kHzTM...
Страница 135: ...Chapter 10 Timers...
Страница 160: ...Chapter 11 PWM...
Страница 172: ...Chapter 12 Watchdog Timer...
Страница 180: ...Chapter 13 Synchronous Serial Port...
Страница 195: ...Chapter 14 UART...
Страница 216: ...Chapter 15 I2 C Bus Interface...
Страница 231: ...Chapter 16 NMI Pin...
Страница 237: ...Chapter 17 Port 0...
Страница 246: ...Chapter 18 Port 1...
Страница 252: ...Chapter 19 Port 2...
Страница 259: ...Chapter 20 Port 3...
Страница 270: ...Chapter 21 Port 4...
Страница 282: ...Chapter 22 Port A...
Страница 290: ...Chapter 23 Melody Driver...
Страница 304: ...Chapter 24 RC Oscillation Type A D Converter...
Страница 327: ...Chapter 25 Successive Approximation Type A D Converter...
Страница 338: ...Chapter 26 LCD Drivers...
Страница 371: ...Chapter 27 Battery Level Detector...
Страница 378: ...Chapter 28 Power Supply Circuit...
Страница 381: ...Chapter 29 On Chip Debug Function...
Страница 384: ...Appendixes...
Страница 435: ...Revision History...