参数资料
型号: PC87393F-VJG
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 外设及接口
英文描述: 100-Pin LPC SuperI/O Devices for Portable Applications
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封装: TQFP-100
文件页数: 130/148页
文件大小: 1733K
代理商: PC87393F-VJG
4.0 WATCHDOG Timer (WDT) (Continued)
82
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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
3
2
10
Name
Reserved
Serial Port 2
IRQ Trigger
Enable
Serial Port 1
IRQ Trigger
Enable
Reserved
Reset
0000
0
00
Bit
Description
7-4
Reserved
3
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
2
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
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