參數(shù)資料
型號: M34501E4FP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, OTPROM, MICROCONTROLLER, PDSO20
封裝: 5.30 X 12.60 MM, 1.27 MM PITCH, PLASTIC, SOP-20
文件頁數(shù): 91/118頁
文件大?。?/td> 952K
代理商: M34501E4FP
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.3.01
2005.02.07
page 72 of 112
REJ03B0104-0301
4501 Group
RD (Reset port D specified by register Y)
0000010100
014
11
Grouping:
Input/Output operation
Description: Clears (0) to a bit of port D specified by register
Y.
Note:
Set 0 to 3 to register Y because port D is
four ports (D0–D3).
When values except above are set to regis-
ter Y, this instruction is equivalent to the
NOP instruction.
Operation:
(D(Y))
← 0
However,
(Y) = 0 to 3
RT (ReTurn from subroutine)
0001000100
044
12
Grouping:
Return operation
Description: 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)
0001000110
046
11
Grouping:
Return operation
Description: 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)
0001000101
045
12
Skip at uncondition
Grouping:
Return operation
Description: 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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