ML620Q503/Q504 User's Manual
Chapter 6 Clock Generation Circuit
FEUL620Q504
6–8
•
LOSCON
(bit 11)
The LOSCON bit also permits the low-speed crystal oscillator circuit to oscillate when the low-speed
built-in RC oscillation mode is selected. When LOSCON is turned to "1", the low-speed crystal
oscillator circuit is enabled to oscillate at the same time even though the built-in RC oscillation mode is
selected by the XTM1 or XTM0 bit.
Note that the low-speed crystal oscillation clock at this time is supplied only to the timer block. Clocks
selected by the XTM1 and XTM0 bits are supplied to peripherals other than the timer block. If the
low-speed crystal oscillation is selected as the clock for timer block, set the LOSCON bit to "1".
LOSCON
Description
0
Prohibit low-speed crystal oscillation when the low-speed built-in RC oscillation
mode is selected (initial value)
1
Permit low-speed crystal oscillation when the low-speed built-in RC oscillation mode
is selected
•
LOSST
(bit 14)
LOSST is the flag used to indicate the oscillation state of the low-speed crystal oscillator circuit.
LOSST
Description
0
The low-speed crystal oscillation has stopped, or the low-speed crystal oscillation
stabilization time is being counted (initial value)
1
The low-speed crystal oscillation is in the stable state
•
HOSST
(bit 15)
HOSST is the flag used to indicate the oscillation state of the high-speed crystal/ceramic oscillator
circuit.
HOSST
Description
0
The high-speed crystal/ceramic oscillation has stopped, or the stabilization time is
being counted (initial value)
1
The high-speed crystal/ceramic oscillation is in the stable state
[Note]
•When switching the high-speed clock mode using the OSCM1 and OSCM0 bits, please first stop the
high-speed oscillation(set the ENOSC bit of FCON1 register to “0”) and then set the system clock to the
low-speed clock (set the SYSCLK bits of the FCON1 register to "0").
• In the high-speed external clock input mode, input a clock that does not exceed 16MHz.
Содержание LAPIS SEMICONDUCTOR ML620Q503
Страница 2: ...ML620Q503 Q504 User s Manual Issue Date Apr 16 2015 FEUL620Q504 01...
Страница 18: ...Chapter 1 Overview...
Страница 32: ...Chapter 2 CPU and Memory Space...
Страница 44: ...Chapter 3 Reset Function...
Страница 50: ...Chapter 4 Power Management...
Страница 70: ...Chapter 5 Interrupts...
Страница 134: ...Chapter 6 Clock Generation Circuit...
Страница 161: ...Chapter 7 Time Base Counter...
Страница 170: ...Chapter 8 Timers...
Страница 183: ...Chapter 9 Function Timer FTM...
Страница 231: ...Chapter 10 Watchdog Timer...
Страница 239: ...Chapter 11 Synchronous Serial Port SSIO...
Страница 251: ...Chapter 12 Synchronous Serial Port with FIFO SSIOF...
Страница 283: ...Chapter 13 UART...
Страница 303: ...Chapter 14 UART with FIFO UARTF...
Страница 327: ...Chapter 15 I2 C Bus Interface...
Страница 344: ...Chapter 16 Port XT...
Страница 350: ...Chapter 17 Port 0...
Страница 361: ...Chapter 18 Port 1...
Страница 368: ...Chapter 19 Port2...
Страница 379: ...Chapter 20 Port 3...
Страница 395: ...Chapter 21 Port 4...
Страница 410: ...Chapter 22 Port 5...
Страница 426: ...Chapter 23 Melody Driver...
Страница 439: ...Chapter 24 RC Oscillation type A D Converter RC ADC...
Страница 462: ...Chapter 25 Successive Approximation Type A D Converter SA ADC...
Страница 479: ...Chapter 26 Analog Comparator...
Страница 489: ...Chapter 27 Flash Memory Control...
Страница 505: ...Chapter 28 Voltage Level Supervisor VLS...
Страница 517: ...Chapter 29 LLD circuit...
Страница 519: ...Chapter 30 On Chip Debug Function...
Страница 522: ...Appendixes...
Страница 552: ...Revision History...