at91rm9200_pdc.h

来自「9200下的音频驱动」· C头文件 代码 · 共 26 行

#ifndef __AT91RM9200_PDC_
#define __AT91RM9200_PDC_
// *****************************************************************************//              SOFTWARE API DEFINITION  FOR Peripheral Data Controller
// *****************************************************************************
typedef struct _AT91S_PDC {
        AT91_REG         PDC_RPR;       // Receive Pointer Register
        AT91_REG         PDC_RCR;       // Receive Counter Register
        AT91_REG         PDC_TPR;       // Transmit Pointer Register
        AT91_REG         PDC_TCR;       // Transmit Counter Register
        AT91_REG         PDC_RNPR;      // Receive Next Pointer Register
        AT91_REG         PDC_RNCR;      // Receive Next Counter Register
        AT91_REG         PDC_TNPR;      // Transmit Next Pointer Register
        AT91_REG         PDC_TNCR;      // Transmit Next Counter Register
        AT91_REG         PDC_PTCR;      // PDC Transfer Control Register
        AT91_REG         PDC_PTSR;      // PDC Transfer Status Register
} AT91S_PDC, *AT91PS_PDC;

// -------- PDC_PTCR : (PDC Offset: 0x20) PDC Transfer Control Register --------
#define AT91C_PDC_RXTEN       ((unsigned int) 0x1 <<  0) // (PDC) Receiver Transfer Enable
#define AT91C_PDC_RXTDIS      ((unsigned int) 0x1 <<  1) // (PDC) Receiver Transfer Disable
#define AT91C_PDC_TXTEN       ((unsigned int) 0x1 <<  8) // (PDC) Transmitter Transfer Enable
#define AT91C_PDC_TXTDIS      ((unsigned int) 0x1 <<  9) // (PDC) Transmitter Transfer Disable
// -------- PDC_PTSR : (PDC Offset: 0x24) PDC Transfer Status Register --------

#endif