
212
CHAPTER 10 TIME-BASE TIMER
10.5
Operation of the Time-base Timer
The time-base timer provides the interval timer function and the clock supply function
that supplies clocks to some peripheral functions.
■
Operation of the Interval Timer Function (Time-base Timer)
The interval timer function generates an interrupt request for each interval
The setting in Figure 10.5-1 is required to all the timer to operate as an interval timer.
Figure 10.5-1 Setting of the Time-base Timer
•
The time-base timer counter continues counting up in synchronization with the internal count clock
(one-half of the oscillation clock) as long as the clock is being oscillated.
•
When the counter is cleared (TBR = 0), it counts up from "0". When the interval timer bit overflows,
the interrupt request flag bit (TBOF) is set to "1". If interrupt request output has been enabled (TBIE =
1), an interrupt is generated for each selected interval based on the cleared time.
•
The interval may become longer than the time set because of time-base timer clearing.
RESV
-
-
TBIE TBOF TBR TBC1 TBC0
TBTC
15
14
13
12
11
10
9
8
WDTC
7
0
1
: Used
0 : Set "0"
1 : Set "1"
0
0
bit
Содержание MB90460 Series
Страница 1: ...The following document contains information on Cypress products ...
Страница 3: ......
Страница 5: ......
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 ...
Страница 739: ......