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HT37B90 Datasheet(PDF) 69 Page - Holtek Semiconductor Inc

Part # HT37B90
Description  HT37B90
PDF  80 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT37B90 Datasheet(HTML) 69 Page - Holtek Semiconductor Inc

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CALL addr
Subroutinecall
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
¬ ProgramCounter+1
ProgramCounter
¬ addr
Affectedflag(s)
None
CLR [m]
ClearDataMemory
Description
EachbitofthespecifiedDataMemoryisclearedto0.
Operation
[m]
¬ 00H
Affectedflag(s)
None
CLR [m].i
ClearbitofDataMemory
Description
Bit i ofthespecifiedDataMemoryisclearedto0.
Operation
[m].i
¬ 0
Affectedflag(s)
None
CLR WDT
ClearWatchdogTimer
Description
TheTO, PDF flagsandthe WDT areallcleared.
Operation
WDT cleared
TO
¬ 0
PDF
¬ 0
Affectedflag(s)
TO, PDF
CLR WDT1
Pre-clearWatchdogTimer
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
Affectedflag(s)
TO, PDF
CLR WDT2
Pre-clearWatchdogTimer
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
Affectedflag(s)
TO, PDF
HT37B90/HT37B70/HT37B50/HT37B30
Rev.1.00
69
June22,2017



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