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CHAPTER 26 ADDRESS MATCH DETECTION FUNCTION
26.3
Operation of the Address Match Detection Function
If the program counter specifies the same address as the address match detection
register, the INT9 instruction is executed. The address match detection function can be
achieved by processing the INT9 instruction routine.
■
Operation of the Address Match Detection Function
There are 5 address detection registers with a compare enable bit. When the value set in the address
detection register and the value of the program counter match and the compare enable bit is set to "1", the
CPU executes the INT9 instruction.
Note:
If the value of the address detection register and the value of the program counter match, the
contents of internal data bus is changed to "01
H
". Consequently, the INT9 instruction is executed.
Before changing the contents of the address detection register, always set the compare enable bit to
"0". While the compare enable bit is set to "1", changing the contents of the address detection
register may result in a malfunction.
Содержание MB90390 Series
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Страница 17: ...xiii APPENDIX D List of Interrupt Vectors 690 INDEX 695 ...
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Страница 132: ...104 CHAPTER 5 CLOCKS ...
Страница 152: ...124 CHAPTER 6 CLOCK MODULATOR ...
Страница 210: ...182 CHAPTER 11 TIME BASE TIMER ...
Страница 218: ...190 CHAPTER 12 WATCHDOG TIMER ...
Страница 264: ...236 CHAPTER 14 16 BIT RELOAD TIMER WITH EVENT COUNT FUNCTION ...
Страница 274: ...246 CHAPTER 15 WATCH TIMER ...
Страница 306: ...278 CHAPTER 17 DTP EXTERNAL INTERRUPTS ...
Страница 338: ...310 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 364: ...336 CHAPTER 19 UART0 UART1 ...
Страница 398: ...370 CHAPTER 20 UART2 UART3 Figure 20 5 2 ORE Set Timing Receive data RDRF ORE ...
Страница 432: ...404 CHAPTER 20 UART2 UART3 ...
Страница 482: ...454 CHAPTER 22 SERIAL I O ...
Страница 560: ...532 CHAPTER 24 STEPPING MOTOR CONTROLLER ...
Страница 582: ...554 CHAPTER 27 ROM MIRRORING MODULE ...
Страница 632: ...604 CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION ...
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Страница 723: ...695 INDEX The index follows on the next page This is listed in alphabetic order ...
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