at91_ssc.h File Reference

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SSC Control Register
#define	SSC_CR_OFF   0x00000000
	Control register offset.
#define	SSC_CR   (SSC_BASE + SSC_CR_OFF)
	Control register address.
#define	SSC_RXEN   0x00000001
	Receive enable.
#define	SSC_RXDIS   0x00000002
	Receive disable.
#define	SSC_TXEN   0x00000100
	Transmit enable.
#define	SSC_TXDIS   0x00000200
	Transmit disable.
#define	SSC_SWRST   0x00008000
	Software reset.
SSC Clock Mode Register
#define	SSC_CMR_OFF   0x00000004
	Clock mode register offset.
#define	SSC_CMR   (SSC_BASE + SSC_CMR_OFF)
	Clock mode register address.
#define	SSC_DIV_LSB   0
	Least significant bit of clock divider.
#define	SSC_DIV   0x00000FFF
	Clock divider.
SSC Receive/Transmit Clock Mode Register
#define	SSC_RCMR_OFF   0x00000010
	Receive clock mode register offset.
#define	SSC_RCMR   (SSC_BASE + SSC_RCMR_OFF)
	Receive clock mode register address.
#define	SSC_TCMR_OFF   0x00000018
	Transmit clock mode register offset.
#define	SSC_TCMR   (SSC_BASE + SSC_TCMR_OFF)
	Transmit clock mode register address.
#define	SSC_CKS   0x00000003
	Receive clock selection.
#define	SSC_CKS_DIV   0x00000000
	Divided clock.
#define	SSC_CKS_CLK   0x00000001
	RK/TK clock signal.
#define	SSC_CKS_PIN   0x00000002
	TK/RK pin.
#define	SSC_CKO   0x0000001C
	Receive clock output mode selection.
#define	SSC_CKO_NONE   0x00000000
	None.
#define	SSC_CKO_CONT   0x00000004
	Continous receive clock.
#define	SSC_CKO_TRAN   0x00000008
	Receive clock only during data transfers.
#define	SSC_CKI   0x00000020
	Receive clock inversion.
#define	SSC_CKG   0x000000C0
	Receive clock gating selection.
#define	SSC_CKG_NONE   0x00000000
	None, continous clock.
#define	SSC_CKG_RFL   0x00000040
	Continous receive clock.
#define	SSC_CKG_RFH   0x00000080
	Receive clock only during data transfers.
#define	SSC_START   0x00000F00
	Receive start selection.
#define	SSC_START_CONT   0x00000000
	Receive start as soon as enabled.
#define	SSC_START_TX   0x00000100
	Receive start on transmit start.
#define	SSC_START_LOW_RF   0x00000200
	Receive start on low level RF.
#define	SSC_START_HIGH_RF   0x00000300
	Receive start on high level RF.
#define	SSC_START_FALL_RF   0x00000400
	Receive start on falling edge RF.
#define	SSC_START_RISE_RF   0x00000500
	Receive start on rising edge RF.
#define	SSC_START_LEVEL_RF   0x00000600
	Receive start on any RF level change.
#define	SSC_START_EDGE_RF   0x00000700
	Receive start on any RF edge.
#define	SSC_START_COMP0   0x00000800
	Receive on compare 0.
#define	SSC_STOP   0x00001000
	Receive stop selection.
#define	SSC_STTDLY   0x00FF0000
	Receive start delay.
#define	SSC_STTDLY_LSB   16
	Least significant bit of receive start delay.
#define	SSC_PERIOD   0xFF000000
	Receive period divider selection.
#define	SSC_PERIOD_LSB   24
	Least significant bit of receive period divider selection.
SSC Receive/Transmit Frame Mode Registers
#define	SSC_RFMR_OFF   0x00000014
	Receive frame mode register offset.
#define	SSC_RFMR   (SSC_BASE + SSC_RFMR_OFF)
	Receive frame mode register address.
#define	SSC_TFMR_OFF   0x0000001C
	Transmit frame mode register offset.
#define	SSC_TFMR   (SSC_BASE + SSC_TFMR_OFF)
	Transmit frame mode register address.
#define	SSC_DATLEN   0x0000001F
	Data length.
#define	SSC_DATLEN_LSB   0
	Least significant bit of data length.
#define	SSC_LOOP   0x00000020
	Receiver loop mode.
#define	SSC_DATDEF   0x00000020
	Transmit default value.
#define	SSC_MSBF   0x00000080
	Most significant bit first.
#define	SSC_DATNB   0x00000F00
	Data number per frame.
#define	SSC_DATNB_LSB   8
	Least significant bit of data number per frame.
#define	SSC_FSLEN   0x000F0000
	Receive frame sync. length.
#define	SSC_FSLEN_LSB   16
	Least significant bit of receive frame sync. length.
#define	SSC_FSOS   0x00700000
	Receive frame sync. output selection.
#define	SSC_FSOS_NONE   0x00000000
	No frame sync. Line set to input.
#define	SSC_FSOS_NEGATIVE   0x00100000
	Negative pulse.
#define	SSC_FSOS_POSITIVE   0x00200000
	Positive pulse.
#define	SSC_FSOS_LOW   0x00300000
	Low during transfer.
#define	SSC_FSOS_HIGH   0x00400000
	High during transfer.
#define	SSC_FSOS_TOGGLE   0x00500000
	Toggling at each start.
#define	SSC_FSDEN   0x00800000
	Frame sync. data enable.
#define	SSC_FSEDGE   0x01000000
	Frame sync. edge detection.
SSC Receive Holding Register
#define	SSC_RHR_OFF   0x00000020
	Receive holding register offset.
#define	SSC_RHR   (SSC_BASE + SSC_RHR_OFF)
	Receive holding register address.
SSC Transmit Holding Register
#define	SSC_THR_OFF   0x00000024
	Transmit holding register offset.
#define	SSC_THR   (SSC_BASE + SSC_THR_OFF)
	Transmit holding register address.
SSC Receive Sync. Holding Register
#define	SSC_RSHR_OFF   0x00000030
	Receive sync. holding register offset.
#define	SSC_RSHR   (SSC_BASE + SSC_RSHR_OFF)
	Receive sync. holding register address.
SSC Transmit Sync. Holding Register
#define	SSC_TSHR_OFF   0x00000034
	Transmit sync. holding register offset.
#define	SSC_TSHR   (SSC_BASE + SSC_TSHR_OFF)
	Transmit sync. holding register address.
SSC Receive Compare 0 Register
#define	SSC_RC0R_OFF   0x00000038
	Receive compare 0 register offset.
#define	SSC_RC0R   (SSC_BASE + SSC_RC0R_OFF)
	Receive compare 0 register address.
SSC Receive Compare 1 Register
#define	SSC_RC1R_OFF   0x0000003C
	Receive compare 1 register offset.
#define	SSC_RC1R   (SSC_BASE + SSC_RC1R_OFF)
	Receive compare 1 register address.
SSC Status Register
#define	SSC_SR_OFF   0x00000040
	Status register offset.
#define	SSC_SR   (SSC_BASE + SSC_SR_OFF)
	Status register address.
#define	SSC_TXRDY   0x00000001
	Transmit ready.
#define	SSC_TXEMPTY   0x00000002
	Transmit empty.
#define	SSC_ENDTX   0x00000004
	End of transmission.
#define	SSC_TXBUFE   0x00000008
	Transmit buffer empty.
#define	SSC_RXRDY   0x00000010
	Receive ready.
#define	SSC_OVRUN   0x00000020
	Receive overrun.
#define	SSC_ENDRX   0x00000040
	End of receiption.
#define	SSC_RXBUFF   0x00000080
	Receive buffer full.
#define	SSC_CP0   0x00000100
	Compare 0.
#define	SSC_CP1   0x00000200
	Compare 1.
#define	SSC_TXSYN   0x00000400
	Transmit sync.
#define	SSC_RXSYN   0x00000800
	Receive sync.
#define	SSC_TXENA   0x00010000
	Transmit enable.
#define	SSC_RXENA   0x00020000
	Receive enable.
SSC Interrupt Enable Register
#define	SSC_IER_OFF   0x00000044
	Interrupt enable register offset.
#define	SSC_IER   (SSC_BASE + SSC_IER_OFF)
	Interrupt enable register address.
SSC Interrupt Disable Register
#define	SSC_IDR_OFF   0x00000048
	Interrupt disable register offset.
#define	SSC_IDR   (SSC_BASE + SSC_IDR_OFF)
	Interrupt disable register address.
SSC Interrupt Mask Register
#define	SSC_IMR_OFF   0x0000004C
	Interrupt mask register offset.
#define	SSC_IMR   (SSC_BASE + SSC_IMR_OFF)
	Interrupt mask register address.