參數(shù)資料
型號： M34571G6FP
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO24
封裝： 5.30 X 10.10 MM, 0.80 MM PITCH, PLASTIC, SSOP-24
文件頁數(shù)： 109/126頁
文件大?。?/td> 1776K
代理商： M34571G6FP
Rev.1.02
May 25, 2007
Page 83 of 124
REJ03B0179-0102
4571 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
SEA n
(Skip Equal, Accumulator with immediate data n)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
010
01
01 2 02 5 16
22
-
(A) = n
n = 0 to 15
0
111
nn
nn 2 07 n 16 Grouping:
Comparison operation
Description: Skips the next instruction when the contents of register A is
equal to the value n in the immediate field.
Executes the next instruction when the contents of register
A is not equal to the value n in the immediate field.
Opera-
tion:
(A) = n ?
n = 0 to 15
SEAM
(Skip Equal, Accumulator with Memory)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
010
01
10 2 02 6 16
1
-
(A) = (M(DP))
Opera-
tion:
(A) = (M(DP)) ?
Grouping:
Comparison operation
Description: Skips the next instruction when the contents of register A is
equal to the contents of M(DP).
Executes the next instruction when the contents of register
A is not equal to the contents of M(DP).
SNZ0
(Skip if Non Zero condition of external interrupt 0 request flag)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
011
10
00 2 03 8 16
11
-
V10 = 0 : (EXF0) = 1
Opera-
tion:
V10 = 0 : (EXF0) = 1 ?
(EXF0)
← 0
V10 = 1 : SNZ0 = NOP
(V10 : bit 0 of the interrupt control register V1)
Grouping:
Interrupt operation
Description: When V10 = 0 : Clears (0) to the EXF0 flag and skips the
next instruction when external 0 interrupt request flag
EXF0 is “1”. When the EXF0 flag is “0”, executes the next
instruction.
When V10 = 1 : This instruction is equivalent to the NOP
instruction.
SNZ1
(Skip if Non Zero condition of external interrupt 1 request flag)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
011
10
01 2 03 9 16
11
-
V11 = 0 : (EXF1) = 1
Opera-
tion:
V11 = 0 : (EXF1) = 1 ?
(EXF1)
← 0
V11 = 1 : SNZ1 = NOP
(V11 : bit 1 of the interrupt control register V1)
Grouping:
Interrupt operation
Description: When V11 = 0 : Clears (0) to the EXF1 flag and skips the
next instruction when external 1 interrupt request flag
EXF1 is “1”. When the EXF1 flag is “0”, executes the next
instruction.
When V11 = 1 : This instruction is equivalent to the NOP
instruction.
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