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CHAPTER 15 MULTI-PULSE GENERATOR
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In the waveform sequencer, there is a 16-bit timer that can be used to measure the speed of the motor
and disable the OPT output in case of position detect missing.
•
Forced stop control using DTTI1 pin input
External pin control can be performed through clockless DTTI1 pin input even when oscillation is
stopped. (The pin level can be set by each pin or software.) There is selectable noise filter for DTTI1
input. Table 15.1-2 shows the noise width for noise filter of DTTI1 pin.
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PPG Synchronization for Output Signal
In order to avoid short pulse (or glitch) during sequencer state changes, the write timing (WTO) needs to be
delayed and synchronized with the next coming edge of PPG output waveform. See Figure 15.1-1 and
Figure 15.1-2 for details. This function can be enabled or disabled by software. WTS1 and WTS0 bits of
the Input Control Register (IPCR) are used to disable this function and to select the polarity of the PPG
edge to synchronize with.
Figure 15.1-1 PPG Rising Edge Synchronization
Table 15.1-2 Noise Width for Noise Filter
Selection
Noise width for DTTI1 and SNI2 to SNI0 pins
1
Cancel 4-cycle noise.
2
Cancel 8-cycle noise.
3
Cancel 16-cycle noise.
4
Cancel 32-cycle noise.
OP4’
OP5’
OP4
OP5
PPG
Asynchronous State Change
Synchronous State Change
Sequencer changes
state due to, e.g. the
Glitch
reload timer 0 underflow.
WTS1,WTS0 = 00
B
WTS1,WTS0 = 01
B
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: ......