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CHAPTER 15 MULTI-PULSE GENERATOR
15.6.1
Operation of Position Detection
This section describes the operation of the Position Detection Circuit. When the
effective position is detected, a Data Write Timing Output (WTIN1) will be generated to
the Data Write Control Unit and a Position Detect Interrupt is generated if the OPCR:
PDIE is set to "1".
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Operation of Position Detection
The WTIN1 signal is generated by the Position Detection Circuit under the following conditions:
•
A comparison match between SNI2 to SNI0 and RDA2 to RDA0, which is triggered by any effective
edge of SNI2 to SNI0.
•
A detection of effective edge at SNIx which is enabled by the corresponding SEEx bit.
When the CMPE bit (bit8) of the Input Control Register (IPCR) is set to "0", only the edge detection of
SINx pins enabled by the SEE2 to SEE0 bits will engage in the edge detection operation for the position
detection. For instance, when only the SEE0 bit is set to "1", the input edge to the pin SNI0 is in effect, the
data write output signal is generated only when an effective edge is detected at the SIN0 pin. See Figure
15.6-3 for the timing diagram of the edge detection when CMPE = 0.
When the CMPE bit (bit8) of the Input Control Register (IPCR) is set to "1", the SNI2 to SNI0 will be
engaged in the comparison operation with the RDA2 to RDA0 bits. The comparison is triggered by any
edge change at SNI2 to SNI0 pins. See Figure 15.6-4 for the timing diagram of the edge detection when
CMPE = 1.
■
Edge Detection Timing Diagram (CMPE = 0)
Figure 15.6-3 Edge Detection Timing Diagram (CMPE = 0)
10
01
11
WTIN1
CPE1,
CPE0
SNI0
SNI1
SNI2
CMPE
RISING EDGE
DETECTION
FALLING EDGE
DETECTION
BOTH EDGES
DETECTION
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: ......