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CHAPTER 3 CPU
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Delay of the effect of prefix codes
As shown in Figure 3.9-2, if a prefix code is placed before an interrupt/hold suppression instruction, the
prefix code takes effect with the first instruction executed after the interrupt/hold suppression instruction.
Figure 3.9-2 Interrupt/hold Suppression Instructions and Prefix Codes
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Consecutive Prefix Codes
As shown in Figure 3.9-3, when consecutive conflicting prefix codes (PCB, ADB, DTB and SPB) are
specified, the last prefix code is valid.
Figure 3.9-3 Consecutive Prefix Codes
ADD A, 01H
…
MOV ILM, #imm8
⎨
MOV A, FFH
CCR is not changed due to NCC prefix
NCC
CCR: XXX10XX
B
CCR: XXX10XX
B
Interrupt suppression instructions
Prefix codes
↑
The PCB prefix code is valid
……
……
ADB
ADD A, 01H
DTB
PCB
⎨
Содержание MB90460 Series
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Страница 41: ...22 CHAPTER 1 OVERVIEW ...
Страница 45: ...26 CHAPTER 2 NOTES ON HANDLING DEVICES ...
Страница 83: ...64 CHAPTER 3 CPU ...
Страница 95: ...76 CHAPTER 4 RESET ...
Страница 107: ...88 CHAPTER 5 CLOCK ...
Страница 131: ...112 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Страница 175: ...156 CHAPTER 7 INTERRUPT ...
Страница 181: ...162 CHAPTER 8 MODE SETTING ...
Страница 223: ...204 CHAPTER 9 I O PORT ...
Страница 237: ...218 CHAPTER 10 TIME BASE TIMER ...
Страница 247: ...228 CHAPTER 11 WATCHDOG TIMER ...
Страница 275: ...256 CHAPTER 12 16 BIT RELOAD TIMER ...
Страница 373: ...354 CHAPTER 14 MULTI FUNCTIONAL TIMER ...
Страница 485: ...466 CHAPTER 16 PWC Timer ...
Страница 531: ...512 CHAPTER 17 UART ...
Страница 559: ...540 CHAPTER 19 DELAYED INTERRUPT GENERATOR MODULE ...
Страница 589: ...570 CHAPTER 20 8 10 BIT A D CONVERTER ...
Страница 601: ...582 CHAPTER 21 ROM CORRECTION FUNCTION ...
Страница 633: ...614 CHAPTER 23 512K 1024K BIT FLASH MEMORY ...
Страница 645: ...626 CHAPTER 24 EXAMPLE OF F2 MC 16LX MB90F462 F462A F463A CONNECTION FOR SERIAL WRITING ...
Страница 715: ...696 APPENDIX ...
Страница 716: ...697 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
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