參數(shù)資料
型號: HT49C50
廠商: Holtek Semiconductor Inc.
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 50/52頁
文件大?。?/td> 318K
代理商: HT49C50
SZ [m].i
Skip if bit i of the data memory is zero
Description
If bit i of the specified data memory is zero, the following instruction,
fetched during the current instruction execution, is discarded and a dummy
cycle is replaced to get the proper instruction (two cycles). Otherwise proceed
with the next instruction (one cycle).
Operation
Skip if [m].i=0
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
TABRDC [m]
Move the ROM code (current page) to TBLH and data memory
Description
The low byte of ROM code (current page) addressed by the table pointer
(TBLP) is moved to the specified data memory and the high byte transferred
to TBLH directly.
Operation
[m]
TBLH
ROM code (low byte)
ROM code (high byte)
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
TABRDL [m]
Move the ROM code (last page) to TBLH and data memory
Description
The low byte of ROM code (last page) addressed by the table pointer (TBLP)
ismovedtothedatamemoryandthehighbytetransferredtoTBLHdirectly.
Operation
[m]
TBLH
ROM code (low byte)
ROM code (high byte)
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
XOR A,[m]
Logical XOR accumulator with data memory
Description
Data in the accumulator and the indicated data memory perform a bitwise
logical Exclusive_OR operation and the result is stored in the accumulator.
Operation
ACC
ACC XOR [m]
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
HT49C50
50
August 18, 1999
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