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HT82B42R Datasheet(PDF) 72 Page - Holtek Semiconductor Inc |
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HT82B42R Datasheet(HTML) 72 Page - Holtek Semiconductor Inc |
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72 / 86 page  Rev. 1.00 72 October 27, 2011 Rev. 1.00 73 October 27, 2011 HT82B42R/HT82B42RE I/O MCU with USB Interface Subroutine call Unconditionally calls a subroutine at the specified address. The Program Counter then increments 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 instruction. Stack ← Program Counter + 1 Program Counter ← addr None Clear Data Memory Each bit of the specified Data Memory is cleared to 0. [m] ← 00H None Clear bit of Data Memory Bit i of the specified Data Memory is cleared to 0. [m].i ← 0 None Clear Watchdog Timer The TO, PDF flags and the WDT are all cleared. WDT cleared TO ← 0 PDF ← 0 TO, PDF Pre-clear Watchdog Timer The TO, PDF flags and the WDTare all cleared. Note that this instruction works in conjunction with CLR WDT2 and must be executed alternately with CLR WDT2 to have effect. Repetitively executing this instruction without alternately executing CLR WDT2 will have no effect. WDT cleared TO ← 0 PDF ← 0 TO, PDF Pre-clear Watchdog Timer The TO, PDF flags and the WDTare all cleared. Note that this instruction works in conjunction with CLR WDT1 and must be executed alternately with CLR WDT1 to have effect. Repetitively executing this instruction without alternately executing WDT cleared TO ← 0 PDF ← 0 TO, PDF CALL addr Description Operation Affected flag(s) CLR [m] Description Operation Affected flag(s) CLR [m].i Description Operation Affected flag(s) CLR WDT Description Operation Affected flag(s) CLR WDT1 Description Operation Affected flag(s) CLR WDT2 Description Operation Affected flag(s) |
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