#define DBGU_RHR        (24) // Receiver Holding Register
#define DBGU_THR        (28) // Transmitter Holding Register
#define DBGU_BRGR       (32) // Baud Rate Generator Register
#define DBGU_C1R        (64) // Chip ID1 Register
#define DBGU_C2R        (68) // Chip ID2 Register
#define DBGU_FNTR       (72) // Force NTRST Register
#define DBGU_RPR        (256) // Receive Pointer Register
#define DBGU_RCR        (260) // Receive Counter Register
#define DBGU_TPR        (264) // Transmit Pointer Register
#define DBGU_TCR        (268) // Transmit Counter Register
#define DBGU_RNPR       (272) // Receive Next Pointer Register
#define DBGU_RNCR       (276) // Receive Next Counter Register
#define DBGU_TNPR       (280) // Transmit Next Pointer Register
#define DBGU_TNCR       (284) // Transmit Next Counter Register
#define DBGU_PTCR       (288) // PDC Transfer Control Register
#define DBGU_PTSR       (292) // PDC Transfer Status Register
// -------- DBGU_CR : (DBGU Offset: 0x0) Debug Unit Control Register -------- 
#define AT91C_US_RSTRX            (0x1 <<  2) // (DBGU) Reset Receiver
#define AT91C_US_RSTTX            (0x1 <<  3) // (DBGU) Reset Transmitter
#define AT91C_US_RXEN             (0x1 <<  4) // (DBGU) Receiver Enable
#define AT91C_US_RXDIS            (0x1 <<  5) // (DBGU) Receiver Disable
#define AT91C_US_TXEN             (0x1 <<  6) // (DBGU) Transmitter Enable
#define AT91C_US_TXDIS            (0x1 <<  7) // (DBGU) Transmitter Disable
// -------- DBGU_MR : (DBGU Offset: 0x4) Debug Unit Mode Register -------- 
#define AT91C_US_PAR              (0x7 <<  9) // (DBGU) Parity type
#define 	AT91C_US_PAR_EVEN                 (0x0 <<  9) // (DBGU) Even Parity
#define 	AT91C_US_PAR_ODD                  (0x1 <<  9) // (DBGU) Odd Parity
#define 	AT91C_US_PAR_SPACE                (0x2 <<  9) // (DBGU) Parity forced to 0 (Space)
#define 	AT91C_US_PAR_MARK                 (0x3 <<  9) // (DBGU) Parity forced to 1 (Mark)
#define 	AT91C_US_PAR_NONE                 (0x4 <<  9) // (DBGU) No Parity
#define 	AT91C_US_PAR_MULTI_DROP           (0x6 <<  9) // (DBGU) Multi-drop mode
#define AT91C_US_CHMODE           (0x3 << 14) // (DBGU) Channel Mode
#define 	AT91C_US_CHMODE_NORMAL               (0x0 << 14) // (DBGU) Normal Mode: The USART channel operates as an RX/TX USART.
#define 	AT91C_US_CHMODE_AUTO                 (0x1 << 14) // (DBGU) Automatic Echo: Receiver Data Input is connected to the TXD pin.
#define 	AT91C_US_CHMODE_LOCAL                (0x2 << 14) // (DBGU) Local Loopback: Transmitter Output Signal is connected to Receiver Input Signal.
#define 	AT91C_US_CHMODE_REMOTE               (0x3 << 14) // (DBGU) Remote Loopback: RXD pin is internally connected to TXD pin.
// -------- DBGU_IER : (DBGU Offset: 0x8) Debug Unit Interrupt Enable Register -------- 
#define AT91C_US_RXRDY            (0x1 <<  0) // (DBGU) RXRDY Interrupt
#define AT91C_US_TXRDY            (0x1 <<  1) // (DBGU) TXRDY Interrupt
#define AT91C_US_ENDRX            (0x1 <<  3) // (DBGU) End of Receive Transfer Interrupt
#define AT91C_US_ENDTX            (0x1 <<  4) // (DBGU) End of Transmit Interrupt
#define AT91C_US_OVRE             (0x1 <<  5) // (DBGU) Overrun Interrupt
#define AT91C_US_FRAME            (0x1 <<  6) // (DBGU) Framing Error Interrupt
#define AT91C_US_PARE             (0x1 <<  7) // (DBGU) Parity Error Interrupt
#define AT91C_US_TXEMPTY          (0x1 <<  9) // (DBGU) TXEMPTY Interrupt
#define AT91C_US_TXBUFE           (0x1 << 11) // (DBGU) TXBUFE Interrupt
#define AT91C_US_RXBUFF           (0x1 << 12) // (DBGU) RXBUFF Interrupt
#define AT91C_US_COMM_TX          (0x1 << 30) // (DBGU) COMM_TX Interrupt
#define AT91C_US_COMM_RX          (0x1 << 31) // (DBGU) COMM_RX Interrupt
// -------- DBGU_IDR : (DBGU Offset: 0xc) Debug Unit Interrupt Disable Register -------- 
// -------- DBGU_IMR : (DBGU Offset: 0x10) Debug Unit Interrupt Mask Register -------- 
// -------- DBGU_CSR : (DBGU Offset: 0x14) Debug Unit Channel Status Register -------- 
// -------- DBGU_FNTR : (DBGU Offset: 0x48) Debug Unit FORCE_NTRST Register -------- 
#define AT91C_US_FORCE_NTRST      (0x1 <<  0) // (DBGU) Force NTRST in JTAG

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR Peripheral Data Controller
// *****************************************************************************
// *** Register offset in AT91S_PDC structure ***
#define PDC_RPR         ( 0) // Receive Pointer Register
#define PDC_RCR         ( 4) // Receive Counter Register
#define PDC_TPR         ( 8) // Transmit Pointer Register
#define PDC_TCR         (12) // Transmit Counter Register
#define PDC_RNPR        (16) // Receive Next Pointer Register
#define PDC_RNCR        (20) // Receive Next Counter Register
#define PDC_TNPR        (24) // Transmit Next Pointer Register
#define PDC_TNCR        (28) // Transmit Next Counter Register
#define PDC_PTCR        (32) // PDC Transfer Control Register
#define PDC_PTSR        (36) // PDC Transfer Status Register
// -------- PDC_PTCR : (PDC Offset: 0x20) PDC Transfer Control Register -------- 
#define AT91C_PDC_RXTEN           (0x1 <<  0) // (PDC) Receiver Transfer Enable
#define AT91C_PDC_RXTDIS          (0x1 <<  1) // (PDC) Receiver Transfer Disable
#define AT91C_PDC_TXTEN           (0x1 <<  8) // (PDC) Transmitter Transfer Enable
#define AT91C_PDC_TXTDIS          (0x1 <<  9) // (PDC) Transmitter Transfer Disable
// -------- PDC_PTSR : (PDC Offset: 0x24) PDC Transfer Status Register -------- 

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR Advanced Interrupt Controller
// *****************************************************************************
// *** Register offset in AT91S_AIC structure ***
#define AIC_SMR         ( 0) // Source Mode Register
#define AIC_SVR         (128) // Source Vector Register
#define AIC_IVR         (256) // IRQ Vector Register
#define AIC_FVR         (260) // FIQ Vector Register
#define AIC_ISR         (264) // Interrupt Status Register
#define AIC_IPR         (268) // Interrupt Pending Register
#define AIC_IMR         (272) // Interrupt Mask Register
#define AIC_CISR        (276) // Core Interrupt Status Register
#define AIC_IECR        (288) // Interrupt Enable Command Register
#define AIC_IDCR        (292) // Interrupt Disable Command Register
#define AIC_ICCR        (296) // Interrupt Clear Command Register
#define AIC_ISCR        (300) // Interrupt Set Command Register
#define AIC_EOICR       (304) // End of Interrupt Command Register
#define AIC_SPU         (308) // Spurious Vector Register
#define AIC_DCR         (312) // Debug Control Register (Protect)
#define AIC_FFER        (320) // Fast Forcing Enable Register
#define AIC_FFDR        (324) // Fast Forcing Disable Register
#define AIC_FFSR        (328) // Fast Forcing Status Register
// -------- AIC_SMR : (AIC Offset: 0x0) Control Register -------- 
#define AT91C_AIC_PRIOR           (0x7 <<  0) // (AIC) Priority Level
#define 	AT91C_AIC_PRIOR_LOWEST               (0x0) // (AIC) Lowest priority level
#define 	AT91C_AIC_PRIOR_HIGHEST              (0x7) // (AIC) Highest priority level
#define AT91C_AIC_SRCTYPE         (0x3 <<  5) // (AIC) Interrupt Source Type
#define 	AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE  (0x0 <<  5) // (AIC) Internal Sources Code Label Level Sensitive
#define 	AT91C_AIC_SRCTYPE_INT_EDGE_TRIGGERED   (0x1 <<  5) // (AIC) Internal Sources Code Label Edge triggered
#define 	AT91C_AIC_SRCTYPE_EXT_HIGH_LEVEL       (0x2 <<  5) // (AIC) External Sources Code Label High-level Sensitive
#define 	AT91C_AIC_SRCTYPE_EXT_POSITIVE_EDGE    (0x3 <<  5) // (AIC) External Sources Code Label Positive Edge triggered
// -------- AIC_CISR : (AIC Offset: 0x114) AIC Core Interrupt Status Register -------- 
#define AT91C_AIC_NFIQ            (0x1 <<  0) // (AIC) NFIQ Status
#define AT91C_AIC_NIRQ            (0x1 <<  1) // (AIC) NIRQ Status
// -------- AIC_DCR : (AIC Offset: 0x138) AIC Debug Control Register (Protect) -------- 
#define AT91C_AIC_DCR_PROT        (0x1 <<  0) // (AIC) Protection Mode
#define AT91C_AIC_DCR_GMSK        (0x1 <<  1) // (AIC) General Mask

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR Serial Parallel Interface
// *****************************************************************************
// *** Register offset in AT91S_SPI structure ***
#define SPI_CR          ( 0) // Control Register
#define SPI_MR          ( 4) // Mode Register
#define SPI_RDR         ( 8) // Receive Data Register
#define SPI_TDR         (12) // Transmit Data Register
#define SPI_SR          (16) // Status Register
#define SPI_IER         (20) // Interrupt Enable Register
#define SPI_IDR         (24) // Interrupt Disable Register
#define SPI_IMR         (28) // Interrupt Mask Register
#define SPI_CSR         (48) // Chip Select Register
#define SPI_RPR         (256) // Receive Pointer Register
#define SPI_RCR         (260) // Receive Counter Register
#define SPI_TPR         (264) // Transmit Pointer Register
#define SPI_TCR         (268) // Transmit Counter Register
#define SPI_RNPR        (272) // Receive Next Pointer Register
#define SPI_RNCR        (276) // Receive Next Counter Register
#define SPI_TNPR        (280) // Transmit Next Pointer Register
#define SPI_TNCR        (284) // Transmit Next Counter Register
#define SPI_PTCR        (288) // PDC Transfer Control Register
#define SPI_PTSR        (292) // PDC Transfer Status Register
// -------- SPI_CR : (SPI Offset: 0x0) SPI Control Register -------- 
#define AT91C_SPI_SPIEN           (0x1 <<  0) // (SPI) SPI Enable
#define AT91C_SPI_SPIDIS          (0x1 <<  1) // (SPI) SPI Disable
#define AT91C_SPI_SWRST           (0x1 <<  7) // (SPI) SPI Software reset
// -------- SPI_MR : (SPI Offset: 0x4) SPI Mode Register -------- 
#define AT91C_SPI_MSTR            (0x1 <<  0) // (SPI) Master/Slave Mode
#define AT91C_SPI_PS              (0x1 <<  1) // (SPI) Peripheral Select
#define 	AT91C_SPI_PS_FIXED                (0x0 <<  1) // (SPI) Fixed Peripheral Select
#define 	AT91C_SPI_PS_VARIABLE             (0x1 <<  1) // (SPI) Variable Peripheral Select
#define AT91C_SPI_PCSDEC          (0x1 <<  2) // (SPI) Chip Select Decode
#define AT91C_SPI_DIV32           (0x1 <<  3) // (SPI) Clock Selection
#define AT91C_SPI_MODFDIS         (0x1 <<  4) // (SPI) Mode Fault Detection
#define AT91C_SPI_LLB             (0x1 <<  7) // (SPI) Clock Selection
#define AT91C_SPI_PCS             (0xF << 16) // (SPI) Peripheral Chip Select
#define AT91C_SPI_DLYBCS          (0xFF << 24) // (SPI) Delay Between Chip Selects
// -------- SPI_RDR : (SPI Offset: 0x8) Receive Data Register -------- 
#define AT91C_SPI_RD              (0xFFFF <<  0) // (SPI) Receive Data
#define AT91C_SPI_RPCS            (0xF << 16) // (SPI) Peripheral Chip Select Status
// -------- SPI_TDR : (SPI Offset: 0xc) Transmit Data Register -------- 
#define AT91C_SPI_TD              (0xFFFF <<  0) // (SPI) Transmit Data
#define AT91C_SPI_TPCS            (0xF << 16) // (SPI) Peripheral Chip Select Status
// -------- SPI_SR : (SPI Offset: 0x10) Status Register -------- 
#define AT91C_SPI_RDRF            (0x1 <<  0) // (SPI) Receive Data Register Full
#define AT91C_SPI_TDRE            (0x1 <<  1) // (SPI) Transmit Data Register Empty
#define AT91C_SPI_MODF            (0x1 <<  2) // (SPI) Mode Fault Error
#define AT91C_SPI_OVRES           (0x1 <<  3) // (SPI) Overrun Error Status
#define AT91C_SPI_SPENDRX         (0x1 <<  4) // (SPI) End of Receiver Transfer
#define AT91C_SPI_SPENDTX         (0x1 <<  5) // (SPI) End of Receiver Transfer
#define AT91C_SPI_RXBUFF          (0x1 <<  6) // (SPI) RXBUFF Interrupt
#define AT91C_SPI_TXBUFE          (0x1 <<  7) // (SPI) TXBUFE Interrupt
#define AT91C_SPI_SPIENS          (0x1 << 16) // (SPI) Enable Status
// -------- SPI_IER : (SPI Offset: 0x14) Interrupt Enable Register -------- 
// -------- SPI_IDR : (SPI Offset: 0x18) Interrupt Disable Register -------- 
// -------- SPI_IMR : (SPI Offset: 0x1c) Interrupt Mask Register -------- 
// -------- SPI_CSR : (SPI Offset: 0x30) Chip Select Register -------- 
#define AT91C_SPI_CPOL            (0x1 <<  0) // (SPI) Clock Polarity
#define AT91C_SPI_NCPHA           (0x1 <<  1) // (SPI) Clock Phase
#define AT91C_SPI_BITS            (0xF <<  4) // (SPI) Bits Per Transfer
#define 	AT91C_SPI_BITS_8                    (0x0 <<  4) // (SPI) 8 Bits Per transfer
#define 	AT91C_SPI_BITS_9                    (0x1 <<  4) // (SPI) 9 Bits Per transfer