ST92P141K4D0 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST92P141K4D0

8/16-BIT MCU FOR 3-PHASE AC MOTOR CONTROL

STMicroelectronics 

ST92141 - INTERRUPTS

3.12 WAKE-UP / INTERRUPT LINES MANAGEMENT UNIT (WUIMU)

3.12.1 Introduction

3.12.2 Main Features

The Wake-up/Interrupt Management Unit extends

the number of external interrupt lines from 8 to 23

(depending on the number of external interrupt

lines mapped on external pins of the device). It al-

lows the source of the INTD1 external interrupt

channel to be used for up to 16 additional external

Wake-up/interrupt pins.

These 16 WKUP pins can be programmed as ex-

ternal interrupt lines or as wake-up lines, able to

exit the microcontroller from low power mode

(STOP mode) (see Figure 25).

s Supports up to 16 additional external wake-up

or interrupt lines

s Wake-Up lines can be used to wake-up the ST9

from STOP mode.

s Programmable selection of wake-up or interrupt

s Programmable wake-up trigger edge polarity

s All Wake-Up Lines maskable

Note: The number of available pins is device de-

pendent. Refer to the device pinout description.

Figure 25. Wake-Up Lines / Interrupt Management Unit Block Diagram

WKUP[7:0]

WKUP[15:8]

WUTRL

WUPRL

WUMRL

WUTRH

TRIGGERING LEVEL REGISTERS

WUPRH

PENDING REQUEST REGISTERS

WUMRH

MASK REGISTERS

Note: Reset Signal

on stop bit is

stronger than

the set signal

SW SETTING

WUCTRL

1

0

INT7 (not connected)

TO CPU

INTD1 - External Interrupt Channel

TO RCCU - Stop Mode Control

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