ADAM24P08 ETC, ADAM24P08 Datasheet - Page 30

• Manufacturer Part Number: ADAM24P08
• Description: Remote Control Transmitter
• Manufacturer: ETC

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3. Instruction
(21) AM
(22) SM
(23) IM
(24) DM
Naming :
Status :
Format :
Function :
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Naming :
Status :
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Naming :
Status :
Format :
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Naming :
Status :
Format :
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Add Accumulator to Memory and Status 1 on Carry
Carry to status
Ⅰ
A ← M(X,Y) + A
Data in the memory location addressed by the X and Y-register
is added to data of the accumulator. Results are stored in the
accumulator. Carry data as results is transferred to status.
When the total is more than 15, a carry is caused to put ″1″
in the status. Data in the memory is not changed.
Subtract Accumulator to Memory and Status 1 Not Borrow
Carry to status
Ⅰ
A ← M(X,Y) - A
Data of the accumulator is, through a 2`s complement
addition, subtracted from the memory word addressed by the
Y-register. Results are stored in the accumulator. If data of
the accumulator is less than or equal to the memory word, the
status is set to indicate that a borrow is not caused.
If more than the memory word, a borrow occurs to reset the
status to ″0″.
Increment Memory and Status 1 on Carry
Carry to status
Ⅰ
A ← M(X,Y) + 1
Data of the memory addressed by the X and Y-register is
fetched. Adding 1 to this word, results are stored in the
accumulator. Carry data as results is transferred to the status.
When the total is more than 15, the status is set. The memory
is left unchanged.
Decrement Memory and Status 1 on Not Borrow
Carry to status
Ⅰ
A ← M(X,Y) - 1
Data of the memory addressed by the X and Y-register is
fetched, and one is subtracted from this word (addition of Fh).
Results are stored in the accumulator. Carry data as results is
transferred to the status. If the data is more than or equal to
one, the status is set to indicate that no borrow is caused. The
memory is left unchanged.
Page 29 of 36
ST ← 1(when total>15),
ST ← 0 (when total ≤15)
ST ← 1(when A ≤ M(X,Y))
ST ← 1(when M(X,Y) ≥1)
ST ← 0(when A > M(X,Y))
ST ← 1(when M(X,Y) ≥ 15)
ST ← 0(when M(X,Y) < 15)
ST ← 0 (when M(X,Y) = 0)
ADAM24PXX
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