ST7FOXA0 datasheet(89/123 Pages) STMICROELECTRONICS

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ST7FOXA0

Interrupts

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Table 37.

ST7FOXA0 interrupt mapping

N°

Source

Block

Description

Label

Priority

Order

Exit

from

HALT

Address

Vector

RESET

Reset

N/A

Highest

Priority

Lowest

Priority

yes

FFFEh-FFFFh

TRAP

Software Interrupt

FFFCh-FFFDh

AWU

Auto wakeup Interrupt

AWUCSR

yes (1)

This interrupt exits the MCU from “Auto wakeup from HALT” mode only.

FFFAh-FFFBh

ei0

External Interrupt 0

N/A

yes

FFF8h-FFF9h

ei1

External Interrupt 1

FFF6h-FFF7h

3 (2)

Whatever the sensitivity configuration, this interrupt cannot exit the MCU from HALT, ACTIVE-HALT and AWUFH modes

when a falling edge occurs.

ei2 (2)

External Interrupt 2 (2)

FFF4h-FFF5h

Not used

FFF2h-FFF3h

ei3

External Interrupt 3

yes

FFF0h-FFF1h

6 (3)

This interrupt exits the MCU from “WAIT” and “ACTIVE-HALT” modes only. Moreover IS4[1:0] =01 is the only safe

configuration to avoid spurious interrupt in Halt and AWUFH modes.

ei4 (3)

External Interrupt 4 (3)

no (3)

FFEEh-FFEFh

Not used

FFECh-FFEDh

AT TIMER

AT TIMER Output Compare

Interrupt

PWMxCSR or

ATCSR

FFEAh-FFEBh

AT TIMER Overflow Interrupt

ATCSR

yes (4)

These interrupts exit the MCU from “ACTIVE-HALT” mode only.

FFE8h-FFE9h

LITE

TIMER

LITE TIMER Input Capture

Interrupt

LTCSR

FFE6h-FFE7h

LITE TIMER RTC1 Interrupt

LTCSR

yes (4)

FFE4h-FFE5h

Not used

FFE2h-FFE3h

Not used

FFE0h-FFE1h

Obsolete

Product(s)

- Obsolete

Product(s)

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