ST72321R7-Auto datasheet(56/243 Pages) STMICROELECTRONICS

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Interrupts

ST72321xx-Auto

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Doc ID 13829 Rev 1

Table 20.

Interrupt mapping

No.

Source

block

Description

label

Priority

order

Exit

from

Halt (1)

Address

vector

RESET

Reset

N/A

yes

FFFEh-FFFFh

TRAP

Software interrupt

FFFCh-FFFDh

TLI

External top level interrupt

EICR

yes

FFFAh-FFFBh

MCC/RTC Main clock controller time base interrupt

MCCSR

Higher

priority

yes

FFF8h-FFF9h

ei0

External interrupt port A3..0

N/A

yes

FFF6h-FFF7h

ei1

External interrupt port F2..0

yes

FFF4h-FFF5h

ei2

External interrupt port B3..0

yes

FFF2h-FFF3h

ei3

External interrupt port B7..4

yes

FFF0h-FFF1h

Not used

FFEEh-FFEFh

SPI

SPI peripheral interrupts

SPICSR

yes(2)

FFECh-FFEDh

TIMER A

TIMER A peripheral interrupts

TASR

FFEAh-FFEBh

TIMER B

TIMER B peripheral interrupts

TBSR

FFE8h-FFE9h

SCI

SCI peripheral interrupts

SCISR

Lower

priority

FFE6h-FFE7h

AVD

Auxiliary voltage detector interrupt

SICSR

FFE4h-FFE5h

I2C

I2C peripheral interrupts

(see

peripheral)

FFE2h-FFE3h

PWM ART

PWM ART interrupt

ARTCSR

yes(3)

FFE0h-FFE1h

In Flash devices only a RESET or MCC/RTC interrupt can be used to wake-up from Active Halt mode.

Exit from HALT possible when SPI is in slave mode.

Exit from HALT possible when PWM ART is in external clock mode.

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