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CHAPTER 15 MULTI-PULSE GENERATOR
15.6.7
Operation of 16-bit Timer
The 16-bit timer has buffer and compare clear function, which is used for motor speed
checking and abnormal detection timeout. The 16-bit timer starts counting up from
counter value "0000
H
" after a reset has been completed and counting enable bit is set.
■
16-bit Timer Operation
The counter value is cleared in the following conditions:
•
When an overflow has occurred.
•
When a match with Compare Clear Register (CPCR) is detected.
•
When "1" is written to the TCLR bit of the TCSR register during operation.
•
When a write timing signal is generated and MODE bit of the TCSR is "0".
•
When a position detection signal is generated and MODE bit of the TCSR is "1".
•
Reset
An interrupt can be generated when the counter is cleared due to a match with Compare Clear Register.
There is no interrupt when an overflow occurs.
Note:
Word access to Compare Clear Register and Timer Buffer Register must be used.
Figure 15.6-27 Clearing the Counter by an Overflow
Figure 15.6-28 Clearing the Counter upon a Match with Compare Clear Register
FFFF
H
BFFF
H
7FFF
H
3FFF
H
0000
H
Counter value
Overflow
Time
Reset
Interrupt
FFFF
H
BFFF
H
7FFF
H
3FFF
H
0000
H
BFFF
H
Counter value
Match
Time
Reset
Compare clear
Interrupt
Match
register value
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: ......