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CHAPTER 14 MULTI-FUNCTIONAL TIMER
Figure 14.6-9 Zero Detect Interrupt masked in Up-down Count Mode
■
External Count Clock Selected
The 16-bit free-run timer is incremented based on the input clock (internal or external clock). When
external clock is selected, the 16-bit free-run timer counts up at a rising edge when the initial value of
external input is "1" or at a falling edge when initial value of external clock input is "0" after external clock
mode is selected (TCCSH:ECKE=1).
Figure 14.6-10 16-bit Free-run Timer Count Timing
FFFF
H
BFFF
H
7FFF
H
3FFF
H
0000
H
Counter value
Time
Reset
Timer starts
Zero detect
1st
2nd
3rd
4th
Compare clear interrupt
Zero
detect
interrupt
Software
clear
Compare clear match
1st
2nd
3rd
4th
5th
6th
5th
6th
*
Both zero detect interrupt and compare clear interrupt are software cleared
TCCSH:MSI2:0=000
B
TCCSH:MSI2:0=001
B
TCCSH:MSI2:0=010
B
N
N+1
Counter value
External clock
Count clock
input
TCCSH:ECKE
φ
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: ......