isa.h.bak

来自「void __irq Uart0_TxInt(void) void __ir」· BAK 代码 · 共 17 行

/***************************************************************************

描述：ISA 基本定义

****************************************************************************/

#define ISA_BASE 0x20000000 //nGS4
#define ISA_EFER_ADD 0x3f0      //EFER 扩展功能确认寄存器()地址可以是3F0H和370H之一，取决与上电是P43管脚的状态
#define ISA_EFDR_ADD ISA_EFER+1 // 数据寄存器
#define ISA_EFER *(volatile unsigned char *)(ISA_BASE+ISA_EFER_ADD)
#define ISA_EFDR *(volatile unsigned char *)(ISA_BASE+ISA_EFER_ADD+1)
#define ISA_ID   *(volatile unsigned char *)(ISA_BASE+ISA_EFER_ADD+1)
void eFunctionEnter(void);
void SelectDev(unsigned char DevNum);
unsigned char ISA_ReadId(void);
void WriteIsa(unsigned char addr,unsigned char tData);
unsigned char ReadIsa(unsigned char addr);