參數(shù)資料
型號: HT49R50A
廠商: Holtek Semiconductor Inc.
英文描述: 8-Bit High Performance High speed Microcontroller(8位、高性能、高速微控制器)
中文描述: 8位高性能高速微控制器(8位,高性能,高速微控制器)
文件頁數(shù): 45/51頁
文件大?。?/td> 320K
代理商: HT49R50A
SBC A,[m]
Subtract data memory and carry from the accumulator
Description
The contents of the specified data memory and the complement of the carry
flagaresubtractedfromtheaccumulator,leavingtheresultintheaccumula-
tor.
Operation
ACC
ACC+[m]+C
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
SBCM A,[m]
Subtract data memory and carry from the accumulator
Description
The contents of the specified data memory and the complement of the carry
flag are subtracted from the accumulator, leaving the result in the data
memory.
Operation
[m]
ACC+[m]+C
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
SDZ [m]
Skip if decrement data memory is 0
Description
Thecontentsofthespecifieddatamemoryaredecrementedby1.Iftheresult
is 0, the next instruction is skipped. If the result is 0, the following instruc-
tion, fetched during the current instruction execution, is discarded and a
dummy cycle is replaced to get the proper instruction (2 cycles). Otherwise
proceed with the next instruction (1 cycle).
Operation
Skip if ([m] 1)=0, [m]
([m] 1)
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
SDZA [m]
Decrement data memory and place result in ACC, skip if 0
Description
Thecontentsofthespecifieddatamemoryaredecrementedby1.Iftheresult
is 0, the next instruction is skipped. The result is stored in the accumulator
but the data memory remains unchanged. If the result is 0, the following in-
struction, fetched during the current instruction execution, is discarded and
a dummy cycle is replaced to get the proper instruction (2 cycles). Otherwise
proceed with the next instruction (1 cycle).
Operation
Skip if ([m] 1)=0, ACC
([m] 1)
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
HT49R50A
45
November 29, 2000
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PDF描述
HT49R50 8-BIT MICROCONTROLLER
HT5D048 0.8m CMOS High Speed Gate Array(0.8m CMOS高速門陣列)
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HT5D064 0.8m CMOS High Speed Gate Array(0.8m CMOS高速門陣列)
HT5F240 0.8m CMOS High Speed Gate Array(0.8m CMOS高速門陣列)
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