ST72561J9-Auto STMicroelectronics, ST72561J9-Auto Datasheet - Page 58

• Manufacturer Part Number: ST72561J9-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST72561J9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years at 55 °C
• 5 Power Saving Modes: halt, auto wake up from halt, active halt, wait and slow

Interrupts
6.6
6.6.1
58/324
External interrupts
I/O port interrupt sensitivity
The external interrupt sensitivity is controlled by the ISxx bits in the EICR register
(Figure
sensitivities.
Each external interrupt source can be generated on four (or five) different events on the pin:
●
●
●
●
To guarantee correct functionality, the sensitivity bits in the EICR register can be modified
only when the I1 and I0 bits of the CC register are both set to 1 (level 3). This means that
interrupts must be disabled before changing sensitivity.
The pending interrupts are cleared by writing a different value in the ISx[1:0] of the EICR.
Falling edge
Rising edge
Falling and rising edge
Falling edge and low level
21). This control allows up to four fully independent external interrupt source
Doc ID 12370 Rev 8
ST72561-Auto