ST72521 STMICROELECTRONICS [STMicroelectronics], ST72521 Datasheet - Page 39

• Manufacturer Part Number: ST72521
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

INTERRUPTS (Cont’d)
Figure 22. External Interrupt Control bits
PF2
PB7
PA3
PB3
PORT F [2:0] INTERRUPTS
PORT B [7:4] INTERRUPTS
PORT A [3:0] INTERRUPTS
PORT B [3:0] INTERRUPTS
PFDDR.2
PBDDR.7
PADDR.3
PBDDR.3
PFOR.2
PBOR.7
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
PB7
PB6
PB5
PB4
PA3
PA2
PA1
PA0
PB3
PB2
PB1
PB0
ei1 INTERRUPT SOURCE
ei3 INTERRUPT SOURCE
ei0 INTERRUPT SOURCE
ei2 INTERRUPT SOURCE
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