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CHAPTER 10 TIME-BASE TIMER
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Clock Supply Function
The clock supply function supplies clocks to the oscillation stabilization time timer and to some peripheral
functions.
Table 10.1-2 lists the cycle times of clocks supplied from the time-base timer to each peripheral.
Reference:
The oscillation stabilization time is the yardstick because the oscillation cycle time is unstable as
soon as oscillation starts.
Table 10.1-2 Clock Cycle Time supplied from the Time-base Timer
Clock destination
Clock cycle time
Remarks
Oscillation
stabilization time
2
13
/ HCLK (Approx. 2.0 ms)
Oscillation stabilization time for ceramic vibrator
2
15
/ HCLK (Approx. 8.2 ms)
Oscillation stabilization time for crystal vibrator
2
18
/ HCLK (Approx. 65.4 ms)
Watchdog timer
2
12
/ HCLK (Approx. 1.0 ms)
Count-up clock for watchdog timer
2
14
/ HCLK (Approx. 4.1 ms)
2
16
/ HCLK (Approx. 16.4 ms)
2
19
/ HCLK (Approx. 131.1 ms)
HCLK: Oscillation clock
Values in parentheses occurs during operation of the 4 MHz oscillation clock.
Summary of Contents for MB90460 Series
Page 1: ...The following document contains information on Cypress products ...
Page 3: ......
Page 5: ......
Page 9: ...iv ...
Page 41: ...22 CHAPTER 1 OVERVIEW ...
Page 45: ...26 CHAPTER 2 NOTES ON HANDLING DEVICES ...
Page 83: ...64 CHAPTER 3 CPU ...
Page 95: ...76 CHAPTER 4 RESET ...
Page 107: ...88 CHAPTER 5 CLOCK ...
Page 131: ...112 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Page 175: ...156 CHAPTER 7 INTERRUPT ...
Page 181: ...162 CHAPTER 8 MODE SETTING ...
Page 223: ...204 CHAPTER 9 I O PORT ...
Page 237: ...218 CHAPTER 10 TIME BASE TIMER ...
Page 247: ...228 CHAPTER 11 WATCHDOG TIMER ...
Page 275: ...256 CHAPTER 12 16 BIT RELOAD TIMER ...
Page 373: ...354 CHAPTER 14 MULTI FUNCTIONAL TIMER ...
Page 485: ...466 CHAPTER 16 PWC Timer ...
Page 531: ...512 CHAPTER 17 UART ...
Page 559: ...540 CHAPTER 19 DELAYED INTERRUPT GENERATOR MODULE ...
Page 589: ...570 CHAPTER 20 8 10 BIT A D CONVERTER ...
Page 601: ...582 CHAPTER 21 ROM CORRECTION FUNCTION ...
Page 633: ...614 CHAPTER 23 512K 1024K BIT FLASH MEMORY ...
Page 645: ...626 CHAPTER 24 EXAMPLE OF F2 MC 16LX MB90F462 F462A F463A CONNECTION FOR SERIAL WRITING ...
Page 715: ...696 APPENDIX ...
Page 716: ...697 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Page 739: ......