參數(shù)資料
型號(hào): M34514E8FP
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): 24/106頁(yè)
文件大?。?/td> 1304K
代理商: M34514E8FP
24
4513/4514 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINARY
Notice: This is not a final specification.
change.
Some parametric limits are subject to
Table 7 External interrupt activated conditions
Name
External 0 interrupt
External 1 interrupt
Input pin
P3
0
/INT0
P3
1
/INT1
Activated condition
When the next waveform is input to P3
0
/INT0 pin
Falling waveform (“H”
“L”)
Rising waveform (“L”
“H”)
Both rising and falling waveforms
When the next waveform is input to P3
1
/INT1 pin
Falling waveform (“H”
“L”)
Rising waveform (“L”
“H”)
Both rising and falling waveforms
Valid waveform
selection bit
I1
1
I1
2
I2
1
I2
2
Fig. 17 External interrupt circuit structure
EXTERNAL INTERRUPTS
The 4513/4514 Group has two external interrupts (external 0 and
external 1). An external interrupt request occurs when a valid
waveform is input to an interrupt input pin (edge detection).
The external interrupts can be controlled with the interrupt control
registers I1 and I2.
0
1
I2
2
0
1
EXF1
I2
1
SNZI1
P3
1
/INT1
0
1
I1
2
Wakeup
Skip
0
1
EXF0
I1
1
SNZI0
P3
0
/INT0
Rising
Falling
One-sided edge
detection circuit
Both edges
detection circuit
External 0
interrupt
External 1
interrupt
Wakeup
Skip
Rising
Falling
One-sided edge
detection circuit
Both edges
detection circuit
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