參數(shù)資料
型號(hào)： M34501E4FP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述： 單芯片4位微機(jī)的CMOS
文件頁(yè)數(shù)： 73/113頁(yè)
文件大小： 1252K
代理商： M34501E4FP
4501 Group
MITSUBISHI MICROCOMPUTERS
73
Skip condition
Number of
cycles
Number of
words
Instruction
code
D
9
D
0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
1
Instruction
code
D
9
D
0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D
9
D
0
Flag CY
2
16
Skip condition
Number of
cycles
Number of
words
Instruction
code
D
9
D
0
Flag CY
2
16
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
SNZP
(Skip if Non Zero condition of Power down flag)
0
0
0
0
0
0
0
0
1
1
0
0
3
1
1
–
(P) = 1
Grouping:
Description:
Other operation
Skips the next instruction when the P flag is
“1”.
After skipping, the P flag remains un-
changed.
Executes the next instruction when the P
flag is “0.”
SNZT1
(Skip if Non Zero condition of Timer 1 inerrupt request flag)
1
0
1
0
0
0
0
0
0
0
2
8
0
1
1
–
V1
2
= 0: (T1F) = 1
Grouping:
Description:
Timer operation
When V1
2
= 0 : Skips the next instruction
when timer 1 interrupt request flag T1F is
“1.” After skipping, clears (0) to the T1F flag.
When the T1F flag is “0,” executes the next
instruction.
When V1
2
= 1 : This instruction is equivalent
to the NOP instruction.
Operation:
V1
2
= 0: (T1F) = 1
After skipping, (T1F)
←
0
V1
2
= 1: SNZT1 = NOP
(V1
2
= bit 2 of interrupt control register V1)
Operation:
(P) = 1
SNZCP
(Skip if Non Zero condition of Port C)
1
0
1
0
0
0
1
0
0
1
2
8
9
1
1
–
(C) = 1
Grouping:
Description:
Input/Output operation
Skips the next instruction when the contents
of port C is “1.”
Executes the next instruction when the con-
tents of port C is “0.”
Operation:
(C) = 1
SNZI0
(Skip if Non Zero condition of external 0 Interrupt input pin)
0
0
0
0
1
1
1
0
1
0
0
3
A
1
–
I1
2
= 0 : (INT) = “L”
I1
2
= 1 : (INT) = “H”
Grouping:
Description:
Interrupt operation
When I1
2
= 0 : Skips the next instruction
when the level of INT pin is “L.” Executes the
next instruction when the level of INT pin is
“H.”
When I1
2
= 1 : Skips the next instruction
when the level of INT pin is “H.” Executes
the next instruction when the level of INT pin
is “L.”
Operation:
I1
2
= 0 : (INT) = “L”
I1
2
= 1 : (INT) = “H”
(I1
2
: bit 2 of the interrupt control register I1)
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
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