ST92T163R4D0 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST92T163R4D0

8/16-BIT FULL SPEED USB MCU FOR COMPOSITE DEVICES WITH 16 ENDPOINTS, 20K ROM, 2K RAM, I2C, SCI, & MFT

STMicroelectronics 

ST92163 - 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 selected between the INT7 pin and

up to 16 additional external Wake-up/interrupt

pins.

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

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 30).

Note: The number of available pins is device de-

pendent. Refer to the device pinout description.

Figure 30. Wake-Up Lines / Interrupt Management Unit Block Diagram

STOP

WKUP[ 7:0]

WKU P[15:8]

INT7

WUTRL

WUPRL

WUMRL

WUTRH

TRIGGERING LEVEL REGISTERS

WUPRH

PENDING REQUEST REGISTERS

WUMR H

MASK REGISTERS

Note: Reset Signal

on stop bit is

stronger than

the set signal

SW SETT ING

WUCTR L

1

0

TO CPU

INTD1 - External Interrupt Channel

TO RCCU - Stop Mode Control

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