IBASE Technology MB770, Руководство пользователя, Страница: 29 / 67

INSTALLATIONS
MB770 User’s Manual 25
void Lock_W697HF (void)
{
outportb(W697HF_INDEX_PORT,
W697HF_LOCK);
}
//===========================================================================
void Set_W697HF_LD( unsigned char LD)
{
Unlock_W697HF();
outportb(W697HF_INDEX_PORT,
W697HF_REG_LD);
outportb(W697HF_DATA_PORT, LD);
Lock_W697HF();
}
//===========================================================================
void Set_W697HF_Reg( unsigned char REG, unsigned char DATA)
{
Unlock_W697HF();
outportb(W697HF_INDEX_PORT,
REG);
outportb(W697HF_DATA_PORT, DATA);
Lock_W697HF();
}
//===========================================================================
unsigned char Get_W697HF_Reg(unsigned char REG)
{
unsigned char Result;
Unlock_W697HF();
outportb(W697HF_INDEX_PORT,
REG);
Result = inportb(W697HF_DATA_PORT);
Lock_W697HF();
return
Result;
}
//===========================================================================
Filename
：
W697hf.h
//===========================================================================
//
// 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.
//
//===========================================================================
#ifndef __W697HF_H
#define
__W697HF_H 1
//===========================================================================
#define W697HF_INDEX_PORT
(W697HF_BASE)
#define W697HF_DATA_PORT (W6971)
//===========================================================================
#define W697HF_REG_LD
0x07
//===========================================================================
#define
W697HF_UNLOCK 0x87
#define W697HF_LOCK 0xAA
//===========================================================================
unsigned int Init_W697HF(void);
void Set_W697HF_LD( unsigned char);
void Set_W697HF_Reg( unsigned char, unsigned char);
unsigned char Get_W697HF_Reg( unsigned char);
//===========================================================================
#endif //__W697HF_H