ST7MC2N6T3 查看數據表（PDF） - STMicroelectronics

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ST7MC2N6T3

8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI™

STMicroelectronics 

ST7MC1xx/ST7MC2xx

EXTERNAL INTERRUPT CONTROL REGISTER (EICR) (Cont’d)

- ei0 (port D6..4)

IS31 IS30

00

01

External Interrupt Sensitivity

IPA bit =0

Falling edge &

low level

Rising edge only

IPA bit =1

Rising edge

& high level

Falling edge only

Bit 0 = IPA Interrupt polarity for port D

This bit is used to invert the sensitivity of the port D

[6:4] external interrupts. It can be set and cleared

by software only when I1 and I0 of the CC register

are both set to 1 (level 3).

0: No sensitivity inversion

1: Sensitivity inversion

1 0 Falling edge only Rising edge only

11

Rising and falling edge

- ei0 (port D3..1)

IS31 IS30

00

01

10

11

External Interrupt Sensitivity

Falling edge & low level

Rising edge only

Falling edge only

Rising and falling edge

These 2 bits can be written only when I1 and I0 of

the CC register are both set to 1 (level 3).

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