ST7LITE49K2 datasheet(61/245 Pages) STMICROELECTRONICS

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ST7LITE49K2

Interrupts

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Table 18.

ST7LITE49K2 interrupt mapping

Number

Source

block

Description

label

Priority

order

Exit

from

Halt or

AWUFH

(1)

Address

vector

RESET

Reset

N/A

Highest

Priority

Lowest

Priority

yes

FFFEh-FFFFh

TRAP

Software interrupt

FFFCh-FFFDh

AWU

Auto-wakeup interrupt

AWUCSR

yes (2)

FFFAh-FFFBh

AVD

Auxiliary Voltage Detector interrupt

SICSR

FFF8h-FFF9h

COMPA

Comparator A interrupt

CMPACR

FFF6h-FFF7h

COMPB

Comparator B interrupt

CMPBCR

FFF4h-FFF5h

ei0

External interrupt 0 (Port A)

N/A

yes

FFF2h-FFF3h

ei1

External interrupt 1 (Port B)

FFF0h-FFF1h

ei2

External interrupt 2 (Port C)

FFEEh-FFEFh

AT TIMER

AT timer input Capture/Output

Compare interrupt

ATCSR

FFECh-FFEDh

8(3)

AT timer overflow 1 interrupt

FFEAh-FFEBh

AT timer Overflow 2 interrupt

FFE8h-FFE9h

I2CI2C interrupt

I2CSR1/

I2CSR2

FFE6h-FFE7h

SPI

SPI interrupt

SPICSR

FFE4h-FFE5h

TIM16

16-bit timer peripheral interrupt

TACSR

FFE2h-FFE3h

13(3)

LITE TIMER

Lite timer RTC/IC/RTC2 interrupt

LTCSR2

yes

FFE0h-FFE1h

For an interrupt, all events do not have the same capability to wake up the MCU from Halt, Active-Halt or Auto-wakeup from

Halt modes. Refer to the description of interrupt events for more details.

This interrupt exits the MCU from Auto-wakeup from Halt mode only.

These interrupts exit the MCU from Active-Halt mode only.

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