C&T Solution CT-XBT0x, User Manual

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CT-XBT0x Mini-ITX Motherboard
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3.11 Watchdog Timer
3.11.1 Board Design
The Watchdog Timer (WDT) is implemented by Fintek F81866AD-I.
Register Address
WDT Base Address 0xA10
3.11.2 Psuedo Code

Set WDT Time Unit (Second Unit)
Step1: ByteData = ReadIOByte(0xA15) //Read current setting
Step2: ByteData = ByteData & 0xF7 //Set time unit to “second”
Step3: WriteIOByte(0xA15, ByteData) //Write back

Set WDT Time Value
Step1: WriteIOByte(0xA16, Time) //Set watch dog time value

Enable WDT
Step1: ByteData = ReadIOByte(0xA15) //Read current setting
Step2: ByteData = ByteData | 0x20 //Enable WDT
Step3: WriteIOByte(0xA15, ByteData) //Write back