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67
CHAPTER 4 RESET
●
Software reset
A software reset is an internal reset of three machine cycles (3/
φ
) generated by writing "0" to the RST bit of
the low power consumption mode control register (LPMCR). The oscillation stabilization wait interval is
not required for software resets.
●
Watchdog timer reset
A watchdog timer reset is generated by a watchdog timer overflow that occurs when a "0" is not written to
the WTE bit of the watchdog timer control register (WDTC) within a given time after the watchdog timer is
activated. The oscillation stabilization wait interval can be set by the clock selection register (CKSCR).
●
Power-on reset
A power-on reset is generated when the power is turned on. The oscillation stabilization wait interval is
fixed at 2
18
oscillation clock cycles (2
18
/HCLK). After the oscillation stabilization wait interval has
elapsed, the reset is executed.
See also
•
Definition of clocks
HCLK:
Oscillation clock frequency
MCLK:
Main clock frequency
φ
:
Machine clock (CPU operating clock) frequency
1/
φ
:
Machine cycle (CPU operating clock cycle)
Содержание MB90460 Series
Страница 1: ...The following document contains information on Cypress products ...
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Страница 9: ...iv ...
Страница 41: ...22 CHAPTER 1 OVERVIEW ...
Страница 45: ...26 CHAPTER 2 NOTES ON HANDLING DEVICES ...
Страница 83: ...64 CHAPTER 3 CPU ...
Страница 95: ...76 CHAPTER 4 RESET ...
Страница 107: ...88 CHAPTER 5 CLOCK ...
Страница 131: ...112 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Страница 175: ...156 CHAPTER 7 INTERRUPT ...
Страница 181: ...162 CHAPTER 8 MODE SETTING ...
Страница 223: ...204 CHAPTER 9 I O PORT ...
Страница 237: ...218 CHAPTER 10 TIME BASE TIMER ...
Страница 247: ...228 CHAPTER 11 WATCHDOG TIMER ...
Страница 275: ...256 CHAPTER 12 16 BIT RELOAD TIMER ...
Страница 373: ...354 CHAPTER 14 MULTI FUNCTIONAL TIMER ...
Страница 485: ...466 CHAPTER 16 PWC Timer ...
Страница 531: ...512 CHAPTER 17 UART ...
Страница 559: ...540 CHAPTER 19 DELAYED INTERRUPT GENERATOR MODULE ...
Страница 589: ...570 CHAPTER 20 8 10 BIT A D CONVERTER ...
Страница 601: ...582 CHAPTER 21 ROM CORRECTION FUNCTION ...
Страница 633: ...614 CHAPTER 23 512K 1024K BIT FLASH MEMORY ...
Страница 645: ...626 CHAPTER 24 EXAMPLE OF F2 MC 16LX MB90F462 F462A F463A CONNECTION FOR SERIAL WRITING ...
Страница 715: ...696 APPENDIX ...
Страница 716: ...697 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
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