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CHAPTER 14 MULTI-FUNCTIONAL TIMER
14.8
Sample Programs for the Multi-functional Timer
This section contains sample programs for the multi-functional timer.
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Sample Program for 16-bit Free-run Timer
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Processing
•
A 4 ms compare clear interrupt is generated with 16-bit free-run timer 0.
•
The timer is used in up-down mode to repeatedly generate a compare clear interrupt.
•
EI
2
OS is not used.
•
16 MHz is used for the machine clock, and 62.5 ns is used for the count clock.
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Coding example
ICR11 EQU 0000BBH ;Interrupt control register for the
16-bit free-run timer
TCCS EQU 00005EH ;Timer control status register
CPCLRB EQU 000058H ;Compare clear buffer register
ICLR EQU TCCS:9 ;Interrupt request flag bit
;-------Main program------------------------------------------------------------------------------------------------
CODE CSEG
START:
; : ;Assumes that stack pointer (SP) has already been
initialized
AND CCR,#0BFH ;Interrupt disable
MOV I:ICR11,#00H ;Interrupt level 0 (strongest)
MOVW I:CPCLRB,#0FFFFH ;Set compare clear value to change
16-bit free-run timer from up-count to
down-count
MOVW I:TCCS,#0110H ;Sets up-down mode, 62.5 ns count clock
;Enables compare clear interrupt
;Disables interrupt mask
;Clears interrupt flag and enable timer
MOV ILM,#07H ;Sets ILM in PS to level 7
OR CCR,#40H ; Interrupt enable
LOOP: MOV A,#00H ;Endless loop
MOV A,#01H ;
BRA LOOP ;
;-------Interrupt program--------------------------------------------------------------------------------------------
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 ...
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Страница 716: ...697 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
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