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CHAPTER 15 MULTI-PULSE GENERATOR
15.6.2
Operation of Data Write Control Unit
The Data Write Control Unit is used to generate the write timing output (WTO) for
transferring data from the Output Data Buffer Register (OPDBR) to Output Data Register
(OPDR).
■
Operation of Data Write Control Unit
The Write Timing Output (WTO) can be generated by the following condition:
•
After OPDBR0 is written by software.
•
Triggered by the 16-bit reload timer 0 underflow.
•
Triggered by the 16-bit reload timer 0 underflow. The 16-bit timer is started by the position detection
comparison circuit.
•
Triggered by the position detection input (SNI2 to SNI0) (16-bit Reload timer 0 acts as a delay).
•
Triggered either by the 16-bit reload timer 0 underflow, or by the position detection input.
At the mean time the cause of generation of WTO will be defined by setting different value of OPS2 to
OPS0 bit of the Output Control Register (OPCR: OPS2 to OPS0).
■
Signal Flow Diagram for OPDBR0 by Setting OPS2 to OPS0 = 000
B
Figure 15.6-5 Signal Flow Diagram for OPDBR0 (OPS2 to OPS0 = 000
B
)
The write timing output signal is generated from the Data Write Control Unit whenever a value is written to
the OPDBR0 register, and the data in OPDBR0 is transferred to OPDR register one cycle later.
POSITION
16-BIT RELOAD TIMER 0
TIN
TOUT
DETECTION
TIN0O
WTIN0
WTIN1
WTO
TIN0
SNI2 to
TIN0
WRITE
TIMING
DATA WRITE CONTROL UNIT
OPDBR0W
OPDBR0 WRITE SIGNAL
OUTPUT
Pin
Pin
SNI0
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: ......