
430
CHAPTER 15 MULTI-PULSE GENERATOR
●
Notes about interrupts
•
When the DTIF bit of the output control upper register (OPCUR) is set to "1", control cannot be
returned from interrupt processing. Always clear the DTIF bit.
•
When the WTIF bit of the output control upper register (OPCUR) is set to "1", control cannot be
returned from interrupt processing. Always clear the WTIF bit.
•
When the PDIF bit of the output control lower register (OPCLR) is set to "1", control cannot be returned
from interrupt processing. Always clear the PDIF bit.
•
When the CPIF bit of the input control upper register (IPCUR) is set to "1", control cannot be returned
from interrupt processing. Always clear the CPIF bit.
•
Since the above interrupts share an interrupt vector with other resource, interrupt causes must be
checked carefully by the interrupt processing routine when interrupts are used.
Also, when EI
2
OS is used by these interrupts, shared resource interrupts must be disabled.
■
Usage Notes on the 16-bit Timer
●
Notes about using a program for setting
•
Word access to compare clear register (CPCR) and timer buffer register (TMBR) must be used.
•
Before the prescaler clock is changed, the timer counter should be disable first by setting the TMEN bit
to "0". Change the CLK2, CLK1 and CLK0 bits of the timer control status register (TCSR) only when
the timer is not counting.
•
If the compare clear register (CPCR) is loaded a value same as the timer counter value at that moment,
the comparison operation will NOT be performed until next same counter value.
●
Notes about interrupts
•
When the ICLR bit of the timer control status register (TCSR) is set to "1" and an interrupt request is
enabled (TCSR: ICRE = 1), control cannot be returned from interrupt processing. Always clear the
ICLR bit.
•
Since the 16-bit timer shares an interrupt vector with other resource, interrupt causes must be checked
carefully by the interrupt processing routine when interrupts are used.
Also, when EI
2
OS is used by the 16-bit timer, shared resource interrupts must be disabled.
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: ......