M34282E2GP MITSUBISHI [Mitsubishi Electric Semiconductor], M34282E2GP Datasheet - Page 27

• Manufacturer Part Number: M34282E2GP
• Description: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Operation:
MACHINE INSTRUCTIONS (INDEX BY ALPHABET)
Operation:
Operation:
Operation:
B a (Branch to address a)
A n (Add n and accumulator)
AM (Add accumulator and Memory)
AMC (Add accumulator, Memory and Carry)
Instrunction
code
Instrunction
code
Instrunction
code
Instrunction
code
(PC
(A)
n = 0 to 15
(A)
(A)
(CY)
D
D
D
D
1
0
0
0
8
8
8
8
L
)
1
1
0
0
(A) + n
(A) + (M(DP))
(A) + (M(DP)) + (CY)
Carry
a
a
0
0
0
6
6
–a
a
1
0
0
0
5
a
0
0
0
4
n
a
1
1
3
3
n
a
0
0
2
2
n
a
1
1
1
1
D
n
D
D
D
a
0
1
0
0
0
0
0
0
2
2
2
2
1
0
0
0
+a
A
0
0
8
a
n
A
B
16
16
16
16
Grouping:
Description: Branch within a page : Branches to address
Grouping:
Description: Adds the value n in the immediate field to
Grouping:
Description: Adds the contents of M(DP) to register A.
Grouping:
Description: Adds the contents of M(DP) and carry flag
Number of
Number of
Number of
Number of
words
words
words
words
1
1
1
1
Number of
Number of
Number of
Number of
Branch operation
a in the identical page.
Arithmetic operation
register A.
The contents of carry flag CY remains un-
changed.
Skips the next instruction when there is no
overflow as the result of operation.
Arithmetic operation
Stores the result in register A. The contents
of carry flag CY remains unchanged.
Arithmetic operation
CY to register A. Stores the result in regis-
ter A and carry flag CY.
MITSUBISHI MICROCOMPUTERS
cycles
cycles
cycles
cycles
1
1
1
1
Flag CY
Flag CY
Flag CY
Flag CY
0/1
–
–
–
4282 Group
Skip condition
Skip condition
Skip condition
Skip condition
Overflow = 0
–
–
–
27