ML610Q111/ML610Q112 User’s Manual
Chapter 6 Clock Generation Circuit
FEUL610Q111
6-7
6.3.2 High-Speed Clock
For the high-speed clock generation circuit, built-in PLL oscillation mode or external clock input mode can be selected by
the OSCM1 bit and OSCM0 bit of the frequecy control register0 (FCON0).
6.3.2.1 Built-in PLL Oscillation Mode
The PLL oscillation circuit generates the PLLCLK, which is a clock of 16.384 MHz (= 32.768 kHz
×
500).
And the clock generated by dividing the PLLCLK by 2, which is used as high-speed oscillation clock (OSCLK).
When the frequency of a PLL oscillation clock is less than 16.384MHz ± 1.0%, the LPLL flag of FCON1 is set to "1."
In built-in PLL oscillation mode (OSCM0 = “0”, OSCM1 = “1”), supply of OSCLK (high-speed oscillation clock) is
started when the clock pulse, which is generated by dividing the PLLCLK by 2 count reaches 8192 after oscillation is
enabled (ENOSC is set to “1”).
In built-in PLL oscillation mode, both the PA2,PB6/CLKIN pin can be used as general-purpose input ports.
Figure 6-4 shows the circuit configuration in PLL oscillation mode.
Figure 6-4 Circuit Configuration in PLL Oscillation Mode
STOP mode
ENOSC (Enables oscillation)
32.768kHz
PLL oscillation
circuit
Count: 8192
OSCLK
(High-speed oscillation clock)
1/2
Summary of Contents for ML610Q111
Page 1: ...ML610Q111 ML610Q112 User s Manual Issue Date Nov 16 2016 FEUL610Q111 05 ...
Page 14: ...Chapter 1 Overview ...
Page 26: ...Chapter 2 CPU and Memory Space ...
Page 34: ...Chapter 3 Reset Function ...
Page 38: ...Chapter 4 MCU Control Function ...
Page 53: ...Chapter 5 Interrupts INTs ...
Page 81: ...Chapter 6 Clock Generation Circuit ...
Page 95: ...Chapter 7 Time Base Counter ...
Page 103: ...Chapter 8 Timers ...
Page 145: ...Chapter 9 Watchdog Timer ...
Page 153: ...Chapter 10 PWM ...
Page 199: ...Chapter 11 Synchronous Serial Port ...
Page 212: ...Chapter 12 UART ...
Page 240: ...Chapter 13 I2 C Bus Interface Master ...
Page 254: ...Chapter 14 I2 C Bus Interface Slave ...
Page 269: ...Chapter 15 Port A ...
Page 279: ...Chapter 16 Port B ...
Page 291: ...Chapter 17 Port C ...
Page 303: ...Chapter 18 Port D ...
Page 312: ...Chapter 19 Port AB Interrupts ...
Page 317: ...Chapter 20 Successive Approximation Type A D Converter ...
Page 335: ...Chapter 21 Voltage Level Supervisor ...
Page 342: ...Chapter 22 Analog Comparator ...
Page 353: ...Chapter 23 Data Flash Memory ...
Page 373: ...Chapter 24 On chip Debug ...
Page 375: ...Appendixes ...
Page 393: ...Appendix E ...
Page 398: ...Revision History ...