M34513E4SP/FP 查看數據表（PDF） - Renesas Electronics

零件编号

产品描述 (功能)

比赛名单

M34513E4SP/FP

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

Renesas Electronics 

MITSUBISHI MICROCOMPUTERS

4513/4514 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

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.

Table 7 External interrupt activated conditions

Name

Input pin

Activated condition

External 0 interrupt P30/INT0

External 1 interrupt P31/INT1

When the next waveform is input to P30/INT0 pin

• Falling waveform (“H”→“L”)

• Rising waveform (“L”→“H”)

• Both rising and falling waveforms

When the next waveform is input to P31/INT1 pin

• Falling waveform (“H”→“L”)

• Rising waveform (“L”→“H”)

• Both rising and falling waveforms

Valid waveform

selection bit

I11

I12

I21

I22

P30/INT0

I12

Falling

0

1

Rising

One-sided edge

detection circuit

I11

0

1

Both edges

detection circuit

Wakeup

Skip

SNZI0

EXF0

External 0

interrupt

P31/INT1

I22

Falling

0

1

Rising

One-sided edge

detection circuit

Both edges

detection circuit

Wakeup

Skip

SNZI1

I21

0

1

EXF1

External 1

interrupt

This symbol represents a parasitic diode on the port.

Fig. 17 External interrupt circuit structure

24

Share Link: