ST72321BR9-AUTO View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST72321BR9-AUTO

8-bit MCU for automotive with 32 to 60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C interface

STMicroelectronics 

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ST72321Bxxx-Auto

Interrupts

Table 21.

IS11

0

0

1

1

Interrupt sensitivity - ei2 (port B3..0)

IS10

External interrupt sensitivity

IPB bit = 0

IPB bit = 1

0

Falling edge and low level

Rising edge and high level

1

Rising edge only

Falling edge only

0

Falling edge only

Rising edge only

1

Rising and falling edge

Table 22.

IS11

0

0

1

1

Interrupt sensitivity - ei3 (port B7..4)

IS10

External interrupt sensitivity

0

Falling edge and low level

1

Rising edge only

0

Falling edge only

1

Rising and falling edge

Table 23.

IS21

0

0

1

1

Interrupt sensitivity - ei0 (port A3..0)

IS20

External interrupt sensitivity

IPA bit = 0

IPA bit = 1

0

Falling edge and low level

Rising edge and high level

1

Rising edge only

0

Falling edge only

Falling edge only

Rising edge only

1

Rising and falling edge

Table 24.

IS21

0

0

1

1

Interrupt sensitivity - ei1 (port F2..0)

IS20

External interrupt sensitivity

0

Falling edge and low level

1

Rising edge only

0

Falling edge only

1

Rising and falling edge

65/247

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