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HT56R656 数据表(PDF) 96 Page - Holtek Semiconductor Inc |
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HT56R656 数据表(HTML) 96 Page - Holtek Semiconductor Inc |
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96 / 108 page  CALL addr Subroutine call Description Unconditionally calls a subroutine at the specified address. The Program Counter then in- crements by 1 to obtain the address of the next instruction which is then pushed onto the stack. The specified address is then loaded and the program continues execution from this new address. As this instruction requires an additional operation, it is a two cycle instruc- tion. Operation Stack ¬ Program Counter + 1 Program Counter ¬ addr Affected flag(s) None CLR [m] Clear Data Memory Description Each bit of the specified Data Memory is cleared to 0. Operation [m] ¬ 00H Affected flag(s) None CLR [m].i Clear bit of Data Memory Description Bit i of the specified Data Memory is cleared to 0. Operation [m].i ¬ 0 Affected flag(s) None CLR WDT Clear Watchdog Timer Description The TO, PDF flags and the WDT are all cleared. Operation WDT cleared TO ¬ 0 PDF ¬ 0 Affected flag(s) TO, PDF CLR WDT1 Pre-clear Watchdog Timer Description The TO, PDF flags and the WDT are all cleared. Note that this instruction works in conjunc- tion with CLR WDT2 and must be executed alternately with CLR WDT2 to have effect. Re- petitively executing this instruction without alternately executing CLR WDT2 will have no effect. Operation WDT cleared TO ¬ 0 PDF ¬ 0 Affected flag(s) TO, PDF CLR WDT2 Pre-clear Watchdog Timer Description The TO, PDF flags and the WDT are all cleared. Note that this instruction works in conjunc- tion with CLR WDT1 and must be executed alternately with CLR WDT1 to have effect. Re- petitively executing this instruction without alternately executing CLR WDT1 will have no effect. Operation WDT cleared TO ¬ 0 PDF ¬ 0 Affected flag(s) TO, PDF HT56R62/HT56R65 HT56R642/HT56R644/HT56R654/HT56R656 Rev. 1.00 96 July 20, 2009 |
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