ST STM32F301 6 Series Reference Manual page 178

Interrupts and events
Type of
priority
63 70 -
64 71 Settable
65 72 Settable
66 73 -
67 74 -
68 75 -
69 76 -
70 77 -
71 78 -
72 79 -
73 80 -
74 81 -
75 82 -
76 83 -
77 84 -
78 85 -
79 86 -
80 87 -
81 88 Settable
11.2 Extended interrupts and events controller (EXTI)
The extended interrupts and events controller (EXTI) manages the external and internal
asynchronous events/interrupts and generates the event request to the CPU/Interrupt
Controller and a wake-up request to the Power Manager.
The EXTI allows the management of up to 36 external/internal event line (28 external event
lines and 8 internal event lines).
The active edge of each external interrupt line can be chosen independently, whilst for
internal interrupt the active edge is always the rising one. An interrupt could be left pending:
in case of an external one, a status register is instantiated and indicates the source of the
interrupt; an event is always a simple pulse and it is used for triggering the core wake-up.
For internal interrupts, the pending status is assured by the generating peripheral, so no
need for a specific flag. Each input line can be masked independently for interrupt or event
178/874
Table 28. STM32F3xx vector table (continued)
Acronym
Reserved
COMP2
COMP4_6
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
I2C3_EV_EXTI27
I2C3_ER
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
FPU
Description
COMP2 interrupt combined with EXTI Lines
22 interrupt.
COMP4 & COMP6 interrupts combined with
EXTI Lines 30 and 32 interrupts respectively.
I2C3 event interrupt & EXTI Line27 interrupt
I2C3 error interrupt
Floating point interrupt
RM0366 Rev 5
RM0366
Address
0x0000 013C
0x0000 0140
0x0000 0144
0x0000 0148
0x0000 014C
0x0000 0150
0x0000 0154
0x0000 0158
0x0000 015C
0x0000 0160
0x0000 0164
0x0000 0168
0x0000 016C
0x0000 0170
0x0000 0174
0x0000 0178
0x0000 017C
0x0000 0180
0x0000 0184