參數(shù)資料
型號: M34556M8-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO42
封裝: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁數(shù): 135/147頁
文件大?。?/td> 1087K
代理商: M34556M8-XXXFP
Skip condition
Number of
cycles
Number of
words
Instruction
code
D9
D0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D9
D0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D9
D0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D9
D0
Flag CY
2
16
Rev.3.02
Dec 22, 2006
page 86 of 142
REJ03B0025-0302
4556 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
OP2A (Output port P2 from Accumulator)
1000100010
222
11
Grouping:
Input/Output operation
Description: Outputs the contents of register A to port
P2.
Operation:
(P2)
← (A)
POF (Power OFf)
0000000010
002
11
Grouping:
Other operation
Description: Puts the system in clock operating mode by
executing the POF2 instruction after ex-
ecuting the EPOF instruction.
Note:
If the EPOF instruction is not executed before
executing this instruction, this instruction is
equivalent to the NOP instruction.
Operation:
Transition to clock operating mode
0000011001
019
11
Grouping:
Arithmetic operation
Description: Takes the OR operation between the con-
tents of register A and the contents of
M(DP), and stores the result in register A.
Operation:
(A)
← (A) OR (M(DP))
OR (logical OR between accumulator and memory)
POF2 (Power OFf2)
0000001000
00
8
11
Grouping:
Other operation
Description: Puts the system in RAM back-up state by
executing the POF2 instruction after ex-
ecuting the EPOF instruction.
Note:
If the EPOF instruction is not executed before
executing this instruction, this instruction is
equivalent to the NOP instruction.
Operation:
Transition to RAM back-up mode
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