234
CHAPTER 14 16-BIT RELOAD TIMER (WITH EVENT COUNT FUNCTION)
14.5
Output Pin Functions of 16-bit Reload Timer
In reload mode, the TOT pin performs toggle output (inverts at each underflow). In one-
shot mode, the TOT pin functions as a pulse output that shows a particular level while
the count is in progress.
■
Output Pin Functions of 16-bit Reload Timer
The OUTL bit of the control register sets the output polarity. When OUTL = 0, the initial value for toggle
output is "0" and the one-shot pulse output is "1" while the count is in progress. The output waveforms are
opposite when OUTL = 1.
Figure 14.5-1 and Figure 14.5-2 show the output pin function of 16-bit reload timer (1).
Figure 14.5-1 Output Pin Function of 16-bit Reload Timer (1)
Figure 14.5-2 Output Pin Function of 16-bit Reload Timer (2)
[RELD=1,OUTL=0]
Count start
Underflo
w
Trigger
TOT
OUTE
CNTE
Level is opposite
w
hen
OUTL = 1
General-purpose port
[RELD=1,OUTL=0]
Underflo
w
Trigger
Waiting for a trigger
TOT
OUTE
CNTE
Level is opposite
w
hen OUTL = 1
General-purpose port
Summary of Contents for MB90390 Series
Page 2: ......
Page 4: ......
Page 17: ...xiii APPENDIX D List of Interrupt Vectors 690 INDEX 695 ...
Page 18: ...xiv ...
Page 132: ...104 CHAPTER 5 CLOCKS ...
Page 152: ...124 CHAPTER 6 CLOCK MODULATOR ...
Page 210: ...182 CHAPTER 11 TIME BASE TIMER ...
Page 218: ...190 CHAPTER 12 WATCHDOG TIMER ...
Page 264: ...236 CHAPTER 14 16 BIT RELOAD TIMER WITH EVENT COUNT FUNCTION ...
Page 274: ...246 CHAPTER 15 WATCH TIMER ...
Page 306: ...278 CHAPTER 17 DTP EXTERNAL INTERRUPTS ...
Page 338: ...310 CHAPTER 18 8 10 BIT A D CONVERTER ...
Page 364: ...336 CHAPTER 19 UART0 UART1 ...
Page 398: ...370 CHAPTER 20 UART2 UART3 Figure 20 5 2 ORE Set Timing Receive data RDRF ORE ...
Page 432: ...404 CHAPTER 20 UART2 UART3 ...
Page 482: ...454 CHAPTER 22 SERIAL I O ...
Page 560: ...532 CHAPTER 24 STEPPING MOTOR CONTROLLER ...
Page 582: ...554 CHAPTER 27 ROM MIRRORING MODULE ...
Page 632: ...604 CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION ...
Page 722: ...694 APPENDIX ...
Page 723: ...695 INDEX The index follows on the next page This is listed in alphabetic order ...
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