PC87393 datasheet(82/148 Pages) NSC

부품명	PC87393

상세설명	100-Pin LPC SuperI/O Devices for Portable Applications

PDF	148 Pages

Scroll/Zoom	100%

제조업체	NSC [National Semiconductor (TI)]

홈페이지	http://www.national.com

Logo

82 / 148 page

4.0 WATCHDOG Timer (WDT) (Continued)

www.national.com

4.3.3

WATCHDOG Mask Register (WDMSK)

This register is used to determine which system events (IRQ) are enabled as WATCHDOG Timer trigger events. An enabled

IRQ event becomes a trigger event that causes the timer to reload the WDTO and restart the countdown.

This register enables or masks the trigger events that restart the WATCHDOG timer.

Location:

Offset 01h

Type:

R/W

Bit

7654

Name

Reserved

Serial Port 2

IRQ Trigger

Enable

Serial Port 1

IRQ Trigger

Enable

Reserved

Reset

0000

Bit

Description

7-4

Reserved

Serial Port 2 IRQ Trigger Enable. This bit enables the IRQ assigned to Serial Port 2 to trigger WATCHDOG

Timer reloading.

0: Serial Port 2 IRQ not a trigger event

1: An active Serial Port 2 IRQ enabled as a trigger event

Serial Port 1 IRQ Trigger Enable. This bit enables the IRQ assigned to Serial Port 1 to trigger WATCHDOG

Timer reloading.

0: Serial Port 1 IRQ not a trigger event

1: An active Serial Port 1 IRQ enabled as a trigger event

1-0

Reserved

PC87393 데이터시트(PDF) 82 Page - National Semiconductor (TI)