234
CHAPTER 13 16-Bit I/O TIMER
13.8
Program Example of 16-bit I/O Timer
This section gives a program example of the 16-bit I/O timer.
■
Program Example of 16-bit I/O Timer
●
Processing specification
•
The cycle of a signal input to the IN0 pin is measured.
•
The 16-bit free-run timer 0 and input capture 0 are used.
•
The rising edge is selected as the trigger to be detected.
•
The machine clock (
φ
) is 24 MHz and the count clock of the free-run timer is 4/
φ
(0.17
µ
s).
•
The timer overflow interrupt and input capture interrupt of input capture 0 are used.
•
The overflow interrupt of the 16-bit free-run timer is counted beforehand and used for the cycle
calculation.
•
The cycle can be determined from the following equation:
Cycle = (overflow count
×
"10000
H
" + nth IPCP0 value - (n-1)th IPCP0 value)
×
count clock cycle
= (overflow count
×
10000
H
+ nth IPCP0 value - (n-1)th IPCP0 value)
×
0.17
µ
s
●
Coding example
ICR09 EQU 0000B9H ;Interrupt control register
ICR11 EQU 0000BBH ;Interrupt control register
DDR2 EQU 000012H ;Port 2 direction register
TCCSL EQU 007942H ;Timer control status register
TCDT EQU 007940H ;Timer data register
ICS01 EQU 000050H ;Input capture control status register
IPCP0 EQU 007920H ;Input capture register 0
IVF0 EQU TCCSL:7 ;Timer overflow generation flag bit
ICP0 EQU ICS01:6 ;Valid edge detection flag bit
DATA DSEG ABS=00H
ORG 0100H
OV_CNT RW 1H
DATA ENDS ;Overflow count counter
;
;---------Main program-------------------------------------------
CODE CSEG
START:
; ;Stack pointer (SP),
;already initialized
AND CCR,#0BFH ;Interrupt disable
MOV I:ICR09,#00H ;Interrupt level 0(strongest)
MOV I:ICR11,#00H ;Interrupt level 0(strongest)
MOV I:DDR2,#00000000B ;Port 2 direction setting
MOV I:TCCSL,#01001010B ;Count enable, Counter clear,
;Overflow, Interrupt enable,
;Count clock selection, Counter clear
Summary of Contents for F2MCTM-16LX
Page 2: ......
Page 3: ...FUJITSU LIMITED F2MCTM 16LX 16 BIT MICROCONTROLLER MB90360 Series HARDWARE MANUAL ...
Page 4: ......
Page 42: ...26 CHAPTER 1 OVERVIEW ...
Page 70: ...54 CHAPTER 2 CPU ...
Page 134: ...118 CHAPTER 6 CLOCK SUPERVISOR ...
Page 176: ...160 CHAPTER 8 LOW POWER CONSUMPTION MODE ...
Page 194: ...178 CHAPTER 10 I O PORTS ...
Page 252: ...236 CHAPTER 13 16 Bit I O TIMER ...
Page 282: ...266 CHAPTER 14 16 BIT RELOAD TIMER ...
Page 296: ...280 CHAPTER 15 WATCH TIMER ...
Page 386: ...370 CHAPTER 18 8 10 BIT A D CONVERTER ...
Page 426: ...410 CHAPTER 20 LIN UART Figure 20 5 2 ORE Flag Set Timing RDRF ORE Reception data ...
Page 540: ...524 CHAPTER 22 ADDRESS MATCH DETECTION FUNCTION ...
Page 568: ...552 CHAPTER 24 512K BIT FLASH MEMORY ...
Page 633: ...617 APPENDIX B Instructions Table B 9 3 Bit Operation Instruction Map first byte 6CH ...
Page 634: ...618 APPENDIX Table B 9 4 Character String Operation Instruction Map first byte 6EH ...
Page 637: ...621 APPENDIX B Instructions Table B 9 7 ea Instruction 2 first byte 71H ...
Page 638: ...622 APPENDIX Table B 9 8 ea Instruction 3 first byte 72H ...
Page 639: ...623 APPENDIX B Instructions Table B 9 9 ea Instruction 4 first byte 73H ...
Page 640: ...624 APPENDIX Table B 9 10 ea Instruction 5 first byte 74H ...
Page 641: ...625 APPENDIX B Instructions Table B 9 11 ea Instruction 6 first byte 75H ...
Page 642: ...626 APPENDIX Table B 9 12 ea Instruction 7 first byte 76H ...
Page 643: ...627 APPENDIX B Instructions Table B 9 13 ea Instruction 8 first byte 77H ...
Page 644: ...628 APPENDIX Table B 9 14 ea Instruction 9 first byte 78H ...
Page 645: ...629 APPENDIX B Instructions Table B 9 15 MOVEA RWi ea Instruction first byte 79H ...
Page 646: ...630 APPENDIX Table B 9 16 MOV Ri ea Instruction first byte 7AH ...
Page 647: ...631 APPENDIX B Instructions Table B 9 17 MOVW RWi ea Instruction first byte 7BH ...
Page 648: ...632 APPENDIX Table B 9 18 MOV Ri ea Instruction first byte 7CH ...
Page 649: ...633 APPENDIX B Instructions Table B 9 19 MOVW ea Rwi Instruction first byte 7DH ...
Page 650: ...634 APPENDIX Table B 9 20 XCH Ri ea Instruction first byte 7EH ...
Page 651: ...635 APPENDIX B Instructions Table B 9 21 XCHW RWi ea Instruction first byte 7FH ...
Page 664: ...648 APPENDIX ...
Page 665: ...649 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Page 682: ......