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HT82B40A 数据表(PDF) 40 Page - Holtek Semiconductor Inc

部件名 HT82B40A
功能描述  I/O 8-Bit MCU with USB Interface
PDF  54 Pages
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制造商  HOLTEK [Holtek Semiconductor Inc]
网页  http://www.holtek.com
标志 HOLTEK - Holtek Semiconductor Inc

HT82B40A 数据表(HTML) 40 Page - Holtek Semiconductor Inc

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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
HT82B40R/HT82B40A
Rev. 1.70
40
November 5, 2014



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