ST72325R6-AUTO STMicroelectronics, ST72325R6-AUTO Datasheet - Page 67

• Manufacturer Part Number: ST72325R6-AUTO
• Description: 8-bit Mcu For Automotive With 16 To 60 Kbyte Flash, Adc, Css, 5 Timers, Spi, Sci, I2c Interface
• Manufacturer: STMicroelectronics

ST72325xxx-Auto
Figure 23. External interrupt control bits
PF2
PB4
PA3
PB3
PORT F [2:0] INTERRUPTS
PORT B4 INTERRUPT
PORT A3 INTERRUPT
PORT B [3:0] INTERRUPTS
PFDDR.2
PBDDR.4
PADDR.3
PBDDR.3
PFOR.2
PBOR.4
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], IPA or IPB bits
of the EICR.
PAOR.3
PBOR.3
IPA BIT
IPB BIT
SENSITIVITY
SENSITIVITY
IS20
IS10
SENSITIVITY
SENSITIVITY
IS20
IS10
CONTROL
CONTROL
CONTROL
CONTROL
EICR
EICR
EICR
EICR
IS21
IS11
IS21
IS11
PF2
PF1
PF0
PB3
PB2
PB1
PB0
ei1 INTERRUPT SOURCE
ei3 INTERRUPT SOURCE
ei0 INTERRUPT SOURCE
ei2 INTERRUPT SOURCE
Interrupts
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