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标题: 关于寄存器偏移地址 [打印本页]

作者: fzh2004 时间: 2006-4-13 15:15 标题: 关于寄存器偏移地址

关于寄存器偏移地址
// THE REGISTER MAP
//
//              7     6     5     4     3     2     1     0     Offset
//           +-----+-----+-----+-----+-----+-----+-----+-----+
// RS = 0    |         Command Register (WRITE-Only)         |  0
//           +-----+-----+-----+-----+-----+-----+-----+-----+
// RS = 0    |         Status Register  (READ -Only)         |  1
//           +-----+-----+-----+-----+-----+-----+-----+-----+
// RS = 1    |         Data Register    (WRITE-Only)         |  2
//           +-----+-----+-----+-----+-----+-----+-----+-----+
// RS = 1    |         Data Register    (READ -Only)         |  3
//           +-----+-----+-----+-----+-----+-----+-----+-----+
//
///////////////////////////////////////////////////////////////////////////
*/
#include
#define IOADDR_ALTERA_AVALON_LCD_16207_COMMAND(base)      __IO_CALC_ADDRESS_NATIVE(base, 0)
#define IOWR_ALTERA_AVALON_LCD_16207_COMMAND(base, data)  IOWR(base, 0, data)
#define IOADDR_ALTERA_AVALON_LCD_16207_STATUS(base)       __IO_CALC_ADDRESS_NATIVE(base, 1)
#define IORD_ALTERA_AVALON_LCD_16207_STATUS(base)         IORD(base, 1)
#define ALTERA_AVALON_LCD_16207_STATUS_BUSY_MSK           (0x00000080u)
#define ALTERA_AVALON_LCD_16207_STATUS_BUSY_OFST          (7)
#define IOADDR_ALTERA_AVALON_LCD_16207_DATA_WR(base)      __IO_CALC_ADDRESS_NATIVE(base, 2)
#define IOWR_ALTERA_AVALON_LCD_16207_DATA(base, data)     IOWR(base, 2, data)
#define IOADDR_ALTERA_AVALON_LCD_16207_DATA_RD(base)      __IO_CALC_ADDRESS_NATIVE(base, 3)
#define IORD_ALTERA_AVALON_LCD_16207_DATA(base)           IORD(base, 3)
#endif
    Command Register OFFSET 0;Status Register   OFFSET  1 这是怎么定的?如果IP核不写VHDL来对应寄存器的话,怎么确定偏移量??如生成一个外设接口,怎么来写REG.H的寄存器的偏移量?谢谢

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