參數(shù)資料
型號: M34286G2GP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
封裝: 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20
文件頁數(shù): 41/66頁
文件大小: 495K
代理商: M34286G2GP
4286 Group
Rev.1.00
Aug 06, 2008
page 46 of 64
REJ03B0251-0100
Skip condition
Number of
cycles
Number of
words
Instruction
code
D8
D0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D8
D0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D8
D0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D8
D0
Flag CY
2
16
XAM j
WRST
(eXchange
(Watchdog timer ReSeT)
Accumulator and Memory data)
0011000j1
j0
06j
11
11
Grouping:
RAM to register transfer
Description: After exchanging the contents of M(DP)
Grouping:
Other operation
Description: Initializes the watchdog timer flag (WDF1).
with the contents of register A, an exclusive
OR operation is performed between regis-
ter X and the value j in the immediate field,
and stores the result in register X.
Operation:
(A)
000001111
00F
Operation:
(WDF1)
0
(M(DP))
(X)
(X)EXOR(j)
j = 0 to 3
XAMD j (eXchange Accumulator and Memory data and Decrement register Y and skip)
0011011j1
j0
06
11
(Y) = 15
Grouping:
RAM to register transfer
Description: After exchanging the contents of M(DP)
with the contents of register A, an exclusive
OR operation is performed between regis-
ter X and the value j in the immediate field,
and stores the result in register X.
Subtracts 1 from the contents of register Y.
As a result of subtraction, when the con-
tents of register Y is 15, the next instruction
is skipped.
Operation:
(A)
(M(DP))
(X)
(X)EXOR(j)
j = 0 to 3
(Y)
(Y) – 1
C
+j
XAMI j (eXchange Accumulator and Memory data and Increment register Y and skip)
0011010j1
j0
06
11
(Y) = 0
Grouping:
RAM to register transfer
Description: After exchanging the contents of M(DP)
with the contents of register A, an exclusive
OR operation is performed between regis-
ter X and the value j in the immediate field,
and stores the result in register X.
Adds 1 to the contents of register Y. As a re-
sult of addition, when the contents of
register Y is 0, the next instruction is
skipped.
Operation:
(A)
(M(DP))
(X)
(X)EXOR(j)
j = 0 to 3
(Y)
(Y) + 1
8
+j
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