Intel MB966 User Manual page 33

void WDTEnable(unsigned char NewInterval)
{
unsigned char bBuf;
Set_W627DHG_LD(0x08);
Set_W627DHG_Reg(0x30, 0x01);
bBuf = Get_W627DHG_Reg(0xF5);
bBuf &= (~0x08);
Set_W627DHG_Reg(0xF5, bBuf);
Set_W627DHG_Reg(0xF6, NewInterval);
}
//---------------------------------------------------------------------------
void WDTDisable(void)
{
Set_W627DHG_LD(0x08);
Set_W627DHG_Reg(0xF6, 0x00);
Set_W627DHG_Reg(0x30, 0x00);
}
//---------------------------------------------------------------------------
Filename：W627DHG.cpp
//---------------------------------------------------------------------------
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
//---------------------------------------------------------------------------
#include "W627DHG.H"
#include <dos.h>
//---------------------------------------------------------------------------
unsigned int W627DHG_BASE;
void Unlock_W627DHG (void);
void Lock_W627DHG (void);
//---------------------------------------------------------------------------
unsigned int Init_W627DHG(void)
{
unsigned int result;
unsigned char ucDid;
W627DHG_BASE = 0x4E;
result = W627DHG_BASE;
ucDid = Get_W627DHG_Reg(0x20);
if (ucDid == 0xA0)
{ goto Init_Finish;
else if (ucDid == 0xB0)
{ goto Init_Finish;
W627DHG_BASE = 0x2E;
result = W627DHG_BASE;
ucDid = Get_W627DHG_Reg(0x20);
if (ucDid == 0xA0)
{ goto Init_Finish;
else if (ucDid == 0xB0)
{ goto Init_Finish;
W627DHG_BASE = 0x00;
result = W627DHG_BASE;
Init_Finish:
return (result);
}
//---------------------------------------------------------------------------
void Unlock_W627DHG (void)
{
outportb(W627DHG_INDEX_PORT, W627DHG_UNLOCK);
outportb(W627DHG_INDEX_PORT, W627DHG_UNLOCK);
}
}
}
}
MB966 User's Manual
INSTALLATIONS
//switch to logic device 8
//enable timer
//count mode is second
//set timer
//switch to logic device 8
//clear watchdog timer
//watchdog disabled
//W83627DHG
//W83627DHG-P
//W83627DHG
//W83627DHG-P
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