參數(shù)資料
型號: M34571G4
廠商: Renesas Technology Corp.
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): 76/126頁
文件大?。?/td> 1627K
代理商: M34571G4
Rev.1.02
REJ03B0179-0102
May 25, 2007
Page 76 of 124
4571 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
IAP2
(Input Accumulator from port P2)
Instruc-
tion
code
1
0
0
1
D
9
D
0
0 2
Number of
words
Number of
cycles
Flag CY
Skip condition
1
0
0
0
1
2
6
2 16
1
1
-
-
Opera-
tion:
(A
1
, A
0
)
(P2
1
, P2
0
)
(A
3
, A
2
)
0
Grouping:
Description: Transfers the input of port P2 to the low-order 2 bits (A
1
,
A
0
) of register A.
“0” is stored to the high-order 2 bits (A
3
, A
2
) of register A.
Input/Output operation
IAP3
(Input Accumulator from port P3)
Instruc-
tion
code
1
0
0
1
D
9
D
0
1 2
Number of
words
Number of
cycles
Flag CY
Skip condition
1
0
0
0
1
2
6
3 16
1
1
-
-
Opera-
tion:
(A
1
, A
0
)
(P3
1
, P3
0
)
(A
3
, A
2
)
0
Grouping:
Description: Transfers the input of port P3 to the low-order 2 bits (A
1
,
A
0
) of register A.
“0” is stored to the high-order 2 bits (A
3
, A
2
) of register A.
Input/Output operation
INY
(INcrement register Y)
Instruc-
tion
code
0
0
D
9
D
0
1 2
Number of
words
Number of
cycles
Flag CY
Skip condition
0
0
0
1
0
0
1
0
1
3 16
1
1
-
(Y) = 0
Opera-
tion:
(Y)
(Y) + 1
Grouping:
Description: Adds 1 to the contents of register Y. As a result of addition,
when the contents of register Y is 0, the next instruction is
skipped. When the contents of register Y is not 0, the next
instruction is executed.
RAM addresses
LA n
(Load n in Accumulator)
Instruc-
tion
code
0
0
D
9
D
0
n 2
Number of
words
Number of
cycles
Flag CY
Skip condition
0
1
1
1
n
n
n
0
7
n 16
1
1
-
Continuous
description
Opera-
tion:
(A)
n
n = 0 to 15
Grouping:
Description: Loads the value n in the immediate field to register A.
When the LA instructions are continuously coded and exe-
cuted, only the first LA instruction is executed and other LA
instructions coded continuously are skipped.
Arithmetic operation
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