
APPENDIX
MI800 User’s Manual
61
//===========================================================================
//
// 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 "W627EHF.H"
#include <dos.h>
//===========================================================================
unsigned int W627EHF_BASE;
void Unlock_W627EHF (void);
void Lock_W627EHF (void);
//===========================================================================
unsigned int Init_W627EHF(void)
{
unsigned int result;
unsigned char ucDid;
W627EHF_BASE = 0x2E;
result = W627EHF_BASE;
ucDid = Get_W627EHF_Reg(0x20);
if (ucDid == 0x88)
{
goto
Init_Finish;
}
W627EHF_BASE = 0x4E;
result = W627EHF_BASE;
ucDid = Get_W627EHF_Reg(0x20);
if (ucDid == 0x88)
{
goto
Init_Finish;
}
W627EHF_BASE = 0x00;
result = W627EHF_BASE;
Init_Finish:
return
(result);
}
//===========================================================================
void Unlock_W627EHF (void)
{
outportb(W627EHF_INDEX_PORT,
W627EHF_UNLOCK);
outportb(W627EHF_INDEX_PORT,
W627EHF_UNLOCK);
}
//===========================================================================
void Lock_W627EHF (void)
{
outportb(W627EHF_INDEX_PORT,
W627EHF_LOCK);
}
//===========================================================================
void Set_W627EHF_LD( unsigned char LD)
{
Unlock_W627EHF();
outportb(W627EHF_INDEX_PORT,
W627EHF_REG_LD);
outportb(W627EHF_DATA_PORT,
LD);
Lock_W627EHF();
}
Содержание MI800
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