PC87366 datasheet(81/240 Pages) NSC

81 / 240 page

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3.0

System Wake-Up Control (SWC)

3.1

OVERVIEW

The SWC recognizes the following maskable system events:

Modem ring (RI1 and RI2 pins)

Telephone ring (RING input pin)

Keyboard activity or speciﬁc programmable key sequence

Mouse activity or speciﬁc programmable sequence of clicks and movements

Programmable Consumer Electronics IR (CEIR) address

Wake-up on module IRQs for FDC, Parallel Port, Serial Ports 1 and 2, Mouse, KBC, ACB, Fan Speed Control and

Monitor (FSCM) and WATCHDOG Timer (WDT), Game Port and MIDI Port

Eight VSB-powered, general-purpose input events (via GPIOE0-5 and GPIE6-7)

15 VDD-powered, GPIO-triggered events (via GPIO00-07, GPIO10-14, GPIO16-17)

Software event.

The SWC notifies the device when any of these events occur by asserting one or more of the following output pins:

Power-Up Request (PWUREQ)

System Management Interrupt (SMI)

Interrupt Request (via SERIRQ)

Power Button (PWBTOUT)

Figure 7 shows the block diagram of the SWC.

Figure 7. SWC Block Diagram

Filters and

Polarity

Selection

Logic

Wake-Up

Mode Control

(Extension)

Logic

Wake-Up Event

Detection

and Routing

Logic

Wake-Up

Event

Sources

IRQ

SMI

PWUREQ

100 msec

Pulse

Generator

Internal Crowbar

PWBTIN

Power-Supplies

System ACPI

(VDD, VSB) Status

State

Indication

PWBTOUT

Wake-Up

Extension

Enable

Registers

Wake-Up

Configuration

and Control

Registers

ACPI

Enable, Status

and Routing

Control Registers

16 msec

Debouncer

PC87366 데이터시트(PDF) 81 Page - National Semiconductor (TI)

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