參數(shù)資料
型號: M34501M4
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機的CMOS
文件頁數(shù): 70/113頁
文件大?。?/td> 1252K
代理商: M34501M4
Skip condition
Number of
cycles
Number of
words
Instruction
code
D
9
D
0
70
4501 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D
9
D
0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D
9
D
0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D
9
D
0
Flag CY
2
16
RD
(Reset port D specified by register Y)
0
0
0
0
0
1
0
1
0
0
0
1
4
1
1
Grouping:
Description:
Input/Output operation
Clears (0) to a bit of port D specified by register
Y.
Set 0 to 3 to register Y because port D is
four ports (D
0
–D
3
).
When values except above are set to regis-
ter Y, this instruction is equivalent to the
NOP instruction.
Note:
Operation:
(D(Y))
0
However,
(Y) = 0 to 3
RT
(ReTurn from subroutine)
0
0
0
1
0
0
0
1
0
0
0
4
4
1
2
Grouping:
Description:
Return operation
Returns from subroutine to the routine called
the subroutine.
Operation:
(PC)
(SK(SP))
(SP)
(SP) – 1
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
RTI
(ReTurn from Interrupt)
0
0
0
1
0
0
0
1
1
0
0
4
6
1
1
Grouping:
Description:
Return operation
Returns from interrupt service routine to
main routine.
Returns each value of data pointer (X, Y, Z),
carry flag, skip status, NOP mode status by
the continuous description of the LA/LXY in-
struction, register A and register B to the
states just before interrupt.
RTS
(ReTurn from subroutine and Skip)
0
0
0
1
0
0
0
1
0
1
0
4
5
1
2
Skip at uncondition
Grouping:
Description:
Return operation
Returns from subroutine to the routine called
the subroutine, and skips the next instruction
at uncondition.
Operation:
(PC)
(SK(SP))
(SP)
(SP) – 1
Operation:
(PC)
(SK(SP))
(SP)
(SP) – 1
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