?? at91sam7x256.h
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#define AT91C_SPI_BITS_15 ((unsigned int) 0x7 << 4) // (SPI) 15 Bits Per transfer
#define AT91C_SPI_BITS_16 ((unsigned int) 0x8 << 4) // (SPI) 16 Bits Per transfer
#define AT91C_SPI_SCBR ((unsigned int) 0xFF << 8) // (SPI) Serial Clock Baud Rate
#define AT91C_SPI_DLYBS ((unsigned int) 0xFF << 16) // (SPI) Delay Before SPCK
#define AT91C_SPI_DLYBCT ((unsigned int) 0xFF << 24) // (SPI) Delay Between Consecutive Transfers
// *****************************************************************************
// SOFTWARE API DEFINITION FOR Usart
// *****************************************************************************
typedef struct _AT91S_USART {
AT91_REG US_CR; // Control Register
AT91_REG US_MR; // Mode Register
AT91_REG US_IER; // Interrupt Enable Register
AT91_REG US_IDR; // Interrupt Disable Register
AT91_REG US_IMR; // Interrupt Mask Register
AT91_REG US_CSR; // Channel Status Register
AT91_REG US_RHR; // Receiver Holding Register
AT91_REG US_THR; // Transmitter Holding Register
AT91_REG US_BRGR; // Baud Rate Generator Register
AT91_REG US_RTOR; // Receiver Time-out Register
AT91_REG US_TTGR; // Transmitter Time-guard Register
AT91_REG Reserved0[5]; //
AT91_REG US_FIDI; // FI_DI_Ratio Register
AT91_REG US_NER; // Nb Errors Register
AT91_REG Reserved1[1]; //
AT91_REG US_IF; // IRDA_FILTER Register
AT91_REG Reserved2[44]; //
AT91_REG US_RPR; // Receive Pointer Register
AT91_REG US_RCR; // Receive Counter Register
AT91_REG US_TPR; // Transmit Pointer Register
AT91_REG US_TCR; // Transmit Counter Register
AT91_REG US_RNPR; // Receive Next Pointer Register
AT91_REG US_RNCR; // Receive Next Counter Register
AT91_REG US_TNPR; // Transmit Next Pointer Register
AT91_REG US_TNCR; // Transmit Next Counter Register
AT91_REG US_PTCR; // PDC Transfer Control Register
AT91_REG US_PTSR; // PDC Transfer Status Register
} AT91S_USART, *AT91PS_USART;
// -------- US_CR : (USART Offset: 0x0) Debug Unit Control Register --------
#define AT91C_US_STTBRK ((unsigned int) 0x1 << 9) // (USART) Start Break
#define AT91C_US_STPBRK ((unsigned int) 0x1 << 10) // (USART) Stop Break
#define AT91C_US_STTTO ((unsigned int) 0x1 << 11) // (USART) Start Time-out
#define AT91C_US_SENDA ((unsigned int) 0x1 << 12) // (USART) Send Address
#define AT91C_US_RSTIT ((unsigned int) 0x1 << 13) // (USART) Reset Iterations
#define AT91C_US_RSTNACK ((unsigned int) 0x1 << 14) // (USART) Reset Non Acknowledge
#define AT91C_US_RETTO ((unsigned int) 0x1 << 15) // (USART) Rearm Time-out
#define AT91C_US_DTREN ((unsigned int) 0x1 << 16) // (USART) Data Terminal ready Enable
#define AT91C_US_DTRDIS ((unsigned int) 0x1 << 17) // (USART) Data Terminal ready Disable
#define AT91C_US_RTSEN ((unsigned int) 0x1 << 18) // (USART) Request to Send enable
#define AT91C_US_RTSDIS ((unsigned int) 0x1 << 19) // (USART) Request to Send Disable
// -------- US_MR : (USART Offset: 0x4) Debug Unit Mode Register --------
#define AT91C_US_USMODE ((unsigned int) 0xF << 0) // (USART) Usart mode
#define AT91C_US_USMODE_NORMAL ((unsigned int) 0x0) // (USART) Normal
#define AT91C_US_USMODE_RS485 ((unsigned int) 0x1) // (USART) RS485
#define AT91C_US_USMODE_HWHSH ((unsigned int) 0x2) // (USART) Hardware Handshaking
#define AT91C_US_USMODE_MODEM ((unsigned int) 0x3) // (USART) Modem
#define AT91C_US_USMODE_ISO7816_0 ((unsigned int) 0x4) // (USART) ISO7816 protocol: T = 0
#define AT91C_US_USMODE_ISO7816_1 ((unsigned int) 0x6) // (USART) ISO7816 protocol: T = 1
#define AT91C_US_USMODE_IRDA ((unsigned int) 0x8) // (USART) IrDA
#define AT91C_US_USMODE_SWHSH ((unsigned int) 0xC) // (USART) Software Handshaking
#define AT91C_US_CLKS ((unsigned int) 0x3 << 4) // (USART) Clock Selection (Baud Rate generator Input Clock
#define AT91C_US_CLKS_CLOCK ((unsigned int) 0x0 << 4) // (USART) Clock
#define AT91C_US_CLKS_FDIV1 ((unsigned int) 0x1 << 4) // (USART) fdiv1
#define AT91C_US_CLKS_SLOW ((unsigned int) 0x2 << 4) // (USART) slow_clock (ARM)
#define AT91C_US_CLKS_EXT ((unsigned int) 0x3 << 4) // (USART) External (SCK)
#define AT91C_US_CHRL ((unsigned int) 0x3 << 6) // (USART) Clock Selection (Baud Rate generator Input Clock
#define AT91C_US_CHRL_5_BITS ((unsigned int) 0x0 << 6) // (USART) Character Length: 5 bits
#define AT91C_US_CHRL_6_BITS ((unsigned int) 0x1 << 6) // (USART) Character Length: 6 bits
#define AT91C_US_CHRL_7_BITS ((unsigned int) 0x2 << 6) // (USART) Character Length: 7 bits
#define AT91C_US_CHRL_8_BITS ((unsigned int) 0x3 << 6) // (USART) Character Length: 8 bits
#define AT91C_US_SYNC ((unsigned int) 0x1 << 8) // (USART) Synchronous Mode Select
#define AT91C_US_NBSTOP ((unsigned int) 0x3 << 12) // (USART) Number of Stop bits
#define AT91C_US_NBSTOP_1_BIT ((unsigned int) 0x0 << 12) // (USART) 1 stop bit
#define AT91C_US_NBSTOP_15_BIT ((unsigned int) 0x1 << 12) // (USART) Asynchronous (SYNC=0) 2 stop bits Synchronous (SYNC=1) 2 stop bits
#define AT91C_US_NBSTOP_2_BIT ((unsigned int) 0x2 << 12) // (USART) 2 stop bits
#define AT91C_US_MSBF ((unsigned int) 0x1 << 16) // (USART) Bit Order
#define AT91C_US_MODE9 ((unsigned int) 0x1 << 17) // (USART) 9-bit Character length
#define AT91C_US_CKLO ((unsigned int) 0x1 << 18) // (USART) Clock Output Select
#define AT91C_US_OVER ((unsigned int) 0x1 << 19) // (USART) Over Sampling Mode
#define AT91C_US_INACK ((unsigned int) 0x1 << 20) // (USART) Inhibit Non Acknowledge
#define AT91C_US_DSNACK ((unsigned int) 0x1 << 21) // (USART) Disable Successive NACK
#define AT91C_US_MAX_ITER ((unsigned int) 0x1 << 24) // (USART) Number of Repetitions
#define AT91C_US_FILTER ((unsigned int) 0x1 << 28) // (USART) Receive Line Filter
// -------- US_IER : (USART Offset: 0x8) Debug Unit Interrupt Enable Register --------
#define AT91C_US_RXBRK ((unsigned int) 0x1 << 2) // (USART) Break Received/End of Break
#define AT91C_US_TIMEOUT ((unsigned int) 0x1 << 8) // (USART) Receiver Time-out
#define AT91C_US_ITERATION ((unsigned int) 0x1 << 10) // (USART) Max number of Repetitions Reached
#define AT91C_US_NACK ((unsigned int) 0x1 << 13) // (USART) Non Acknowledge
#define AT91C_US_RIIC ((unsigned int) 0x1 << 16) // (USART) Ring INdicator Input Change Flag
#define AT91C_US_DSRIC ((unsigned int) 0x1 << 17) // (USART) Data Set Ready Input Change Flag
#define AT91C_US_DCDIC ((unsigned int) 0x1 << 18) // (USART) Data Carrier Flag
#define AT91C_US_CTSIC ((unsigned int) 0x1 << 19) // (USART) Clear To Send Input Change Flag
// -------- US_IDR : (USART Offset: 0xc) Debug Unit Interrupt Disable Register --------
// -------- US_IMR : (USART Offset: 0x10) Debug Unit Interrupt Mask Register --------
// -------- US_CSR : (USART Offset: 0x14) Debug Unit Channel Status Register --------
#define AT91C_US_RI ((unsigned int) 0x1 << 20) // (USART) Image of RI Input
#define AT91C_US_DSR ((unsigned int) 0x1 << 21) // (USART) Image of DSR Input
#define AT91C_US_DCD ((unsigned int) 0x1 << 22) // (USART) Image of DCD Input
#define AT91C_US_CTS ((unsigned int) 0x1 << 23) // (USART) Image of CTS Input
// *****************************************************************************
// SOFTWARE API DEFINITION FOR Synchronous Serial Controller Interface
// *****************************************************************************
typedef struct _AT91S_SSC {
AT91_REG SSC_CR; // Control Register
AT91_REG SSC_CMR; // Clock Mode Register
AT91_REG Reserved0[2]; //
AT91_REG SSC_RCMR; // Receive Clock ModeRegister
AT91_REG SSC_RFMR; // Receive Frame Mode Register
AT91_REG SSC_TCMR; // Transmit Clock Mode Register
AT91_REG SSC_TFMR; // Transmit Frame Mode Register
AT91_REG SSC_RHR; // Receive Holding Register
AT91_REG SSC_THR; // Transmit Holding Register
AT91_REG Reserved1[2]; //
AT91_REG SSC_RSHR; // Receive Sync Holding Register
AT91_REG SSC_TSHR; // Transmit Sync Holding Register
AT91_REG Reserved2[2]; //
AT91_REG SSC_SR; // Status Register
AT91_REG SSC_IER; // Interrupt Enable Register
AT91_REG SSC_IDR; // Interrupt Disable Register
AT91_REG SSC_IMR; // Interrupt Mask Register
AT91_REG Reserved3[44]; //
AT91_REG SSC_RPR; // Receive Pointer Register
AT91_REG SSC_RCR; // Receive Counter Register
AT91_REG SSC_TPR; // Transmit Pointer Register
AT91_REG SSC_TCR; // Transmit Counter Register
AT91_REG SSC_RNPR; // Receive Next Pointer Register
AT91_REG SSC_RNCR; // Receive Next Counter Register
AT91_REG SSC_TNPR; // Transmit Next Pointer Register
AT91_REG SSC_TNCR; // Transmit Next Counter Register
AT91_REG SSC_PTCR; // PDC Transfer Control Register
AT91_REG SSC_PTSR; // PDC Transfer Status Register
} AT91S_SSC, *AT91PS_SSC;
// -------- SSC_CR : (SSC Offset: 0x0) SSC Control Register --------
#define AT91C_SSC_RXEN ((unsigned int) 0x1 << 0) // (SSC) Receive Enable
#define AT91C_SSC_RXDIS ((unsigned int) 0x1 << 1) // (SSC) Receive Disable
#define AT91C_SSC_TXEN ((unsigned int) 0x1 << 8) // (SSC) Transmit Enable
#define AT91C_SSC_TXDIS ((unsigned int) 0x1 << 9) // (SSC) Transmit Disable
#define AT91C_SSC_SWRST ((unsigned int) 0x1 << 15) // (SSC) Software Reset
// -------- SSC_RCMR : (SSC Offset: 0x10) SSC Receive Clock Mode Register --------
#define AT91C_SSC_CKS ((unsigned int) 0x3 << 0) // (SSC) Receive/Transmit Clock Selection
#define AT91C_SSC_CKS_DIV ((unsigned int) 0x0) // (SSC) Divided Clock
#define AT91C_SSC_CKS_TK ((unsigned int) 0x1) // (SSC) TK Clock signal
#define AT91C_SSC_CKS_RK ((unsigned int) 0x2) // (SSC) RK pin
#define AT91C_SSC_CKO ((unsigned int) 0x7 << 2) // (SSC) Receive/Transmit Clock Output Mode Selection
#define AT91C_SSC_CKO_NONE ((unsigned int) 0x0 << 2) // (SSC) Receive/Transmit Clock Output Mode: None RK pin: Input-only
#define AT91C_SSC_CKO_CONTINOUS ((unsigned int) 0x1 << 2) // (SSC) Continuous Receive/Transmit Clock RK pin: Output
#define AT91C_SSC_CKO_DATA_TX ((unsigned int) 0x2 << 2) // (SSC) Receive/Transmit Clock only during data transfers RK pin: Output
#define AT91C_SSC_CKI ((unsigned int) 0x1 << 5) // (SSC) Receive/Transmit Clock Inversion
#define AT91C_SSC_START ((unsigned int) 0xF << 8) // (SSC) Receive/Transmit Start Selection
#define AT91C_SSC_START_CONTINOUS ((unsigned int) 0x0 << 8) // (SSC) Continuous, as soon as the receiver is enabled, and immediately after the end of transfer of the previous data.
#define AT91C_SSC_START_TX ((unsigned int) 0x1 << 8) // (SSC) Transmit/Receive start
#define AT91C_SSC_START_LOW_RF ((unsigned int) 0x2 << 8) // (SSC) Detection of a low level on RF input
#define AT91C_SSC_START_HIGH_RF ((unsigned int) 0x3 << 8) // (SSC) Detection of a high level on RF input
#define AT91C_SSC_START_FALL_RF ((unsigned int) 0x4 << 8) // (SSC) Detection of a falling edge on RF input
#define AT91C_SSC_START_RISE_RF ((unsigned int) 0x5 << 8) // (SSC) Detection of a rising edge on RF input
#define AT91C_SSC_START_LEVEL_RF ((unsigned int) 0x6 << 8) // (SSC) Detection of any level change on RF input
#define AT91C_SSC_START_EDGE_RF ((unsigned int) 0x7 << 8) // (SSC) Detection of any edge on RF input
#define AT91C_SSC_START_0 ((unsigned int) 0x8 << 8) // (SSC) Compare 0
#define AT91C_SSC_STTDLY ((unsigned int) 0xFF << 16) // (SSC) Receive/Transmit Start Delay
#define AT91C_SSC_PERIOD ((unsigned int) 0xFF << 24) // (SSC) Receive/Transmit Period Divider Selection
// -------- SSC_RFMR : (SSC Offset: 0x14) SSC Receive Frame Mode Register --------
#define AT91C_SSC_DATLEN ((unsigned int) 0x1F << 0) // (SSC) Data Length
#define AT91C_SSC_LOOP ((unsigned int) 0x1 << 5) // (SSC) Loop Mode
#define AT91C_SSC_MSBF ((unsigned int) 0x1 << 7) // (SSC) Most Significant Bit First
#define AT91C_SSC_DATNB ((unsigned int) 0xF << 8) // (SSC) Data Number per Frame
#define AT91C_SSC_FSLEN ((unsigned int) 0xF << 16) // (SSC) Receive/Transmit Frame Sync length
#define AT91C_SSC_FSOS ((unsigned int) 0x7 << 20) // (SSC) Receive/Transmit Frame Sync Output Selection
#define AT91C_SSC_FSOS_NONE ((unsigned int) 0x0 << 20) // (SSC) Selected Receive/Transmit Frame Sync Signal: None RK pin Input-only
#define AT91C_SSC_FSOS_NEGATIVE ((unsigned int) 0x1 << 20) // (SSC) Selected Receive/Transmit Frame Sync Signal: Negative Pulse
#define AT91C_SSC_FSOS_POSITIVE ((unsigned int) 0x2 << 20) // (SSC) Selected Receive/Transmit Frame Sync Signal: Positive Pulse
#define AT91C_SSC_FSOS_LOW ((unsigned int) 0x3 << 20) // (SSC) Selected Receive/Transmit Frame Sync Signal: Driver Low during data transfer
#define AT91C_SSC_FSOS_HIGH ((unsigned int) 0x4 << 20) // (SSC) Selected Receive/Transmit Frame Sync Signal: Driver High during data transfer
#define AT91C_SSC_FSOS_TOGGLE ((unsigned int) 0x5 << 20) // (SSC) Selected Receive/Transmit Frame Sync Signal: Toggling at each start of data transfer
#define AT91C_SSC_FSEDGE ((unsigned int) 0x1 << 24) // (SSC) Frame Sync Edge Detection
// -------- SSC_TCMR : (SSC Offset: 0x18) SSC Transmit Clock Mode Register --------
// -------- SSC_TFMR : (SSC Offset: 0x1c) SSC Transmit Frame Mode Register --------
#define AT91C_SSC_DATDEF ((unsigned int) 0x1 << 5) // (SSC) Data Default Value
#define AT91C_SSC_FSDEN ((unsigned int) 0x1 << 23) // (SSC) Frame Sync Data Enable
// -------- SSC_SR : (SSC Offset: 0x40) SSC Status Register --------
#define AT91C_SSC_TXRDY ((unsigned int) 0x1 << 0) // (SSC) Transmit Ready
#define AT91C_SSC_TXEMPTY ((unsigned int) 0x1 << 1) // (SSC) Transmit Empty
#define AT91C_SSC_ENDTX ((unsigned int) 0x1 << 2) // (SSC) End Of Transmission
#define AT91C_SSC_TXBUFE ((unsigned int) 0x1 << 3) // (SSC) Transmit Buffer Empty
#define AT91C_SSC_RXRDY ((unsigned int) 0x1 << 4) // (SSC) Receive Ready
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