File content as of revision 0:01f31e923fe2:

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/*                  Atmel Microcontroller Software Support                      */
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#ifndef _SAM3U_TWI0_INSTANCE_
#define _SAM3U_TWI0_INSTANCE_

/* ========== Register definition for TWI0 peripheral ========== */
#if (defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__))
#define REG_TWI0_CR            (0x40084000U) /**< \brief (TWI0) Control Register */
#define REG_TWI0_MMR           (0x40084004U) /**< \brief (TWI0) Master Mode Register */
#define REG_TWI0_SMR           (0x40084008U) /**< \brief (TWI0) Slave Mode Register */
#define REG_TWI0_IADR          (0x4008400CU) /**< \brief (TWI0) Internal Address Register */
#define REG_TWI0_CWGR          (0x40084010U) /**< \brief (TWI0) Clock Waveform Generator Register */
#define REG_TWI0_SR            (0x40084020U) /**< \brief (TWI0) Status Register */
#define REG_TWI0_IER           (0x40084024U) /**< \brief (TWI0) Interrupt Enable Register */
#define REG_TWI0_IDR           (0x40084028U) /**< \brief (TWI0) Interrupt Disable Register */
#define REG_TWI0_IMR           (0x4008402CU) /**< \brief (TWI0) Interrupt Mask Register */
#define REG_TWI0_RHR           (0x40084030U) /**< \brief (TWI0) Receive Holding Register */
#define REG_TWI0_THR           (0x40084034U) /**< \brief (TWI0) Transmit Holding Register */
#define REG_TWI0_RPR           (0x40084100U) /**< \brief (TWI0) Receive Pointer Register */
#define REG_TWI0_RCR           (0x40084104U) /**< \brief (TWI0) Receive Counter Register */
#define REG_TWI0_TPR           (0x40084108U) /**< \brief (TWI0) Transmit Pointer Register */
#define REG_TWI0_TCR           (0x4008410CU) /**< \brief (TWI0) Transmit Counter Register */
#define REG_TWI0_RNPR          (0x40084110U) /**< \brief (TWI0) Receive Next Pointer Register */
#define REG_TWI0_RNCR          (0x40084114U) /**< \brief (TWI0) Receive Next Counter Register */
#define REG_TWI0_TNPR          (0x40084118U) /**< \brief (TWI0) Transmit Next Pointer Register */
#define REG_TWI0_TNCR          (0x4008411CU) /**< \brief (TWI0) Transmit Next Counter Register */
#define REG_TWI0_PTCR          (0x40084120U) /**< \brief (TWI0) Transfer Control Register */
#define REG_TWI0_PTSR          (0x40084124U) /**< \brief (TWI0) Transfer Status Register */
#else
#define REG_TWI0_CR   (*(WoReg*)0x40084000U) /**< \brief (TWI0) Control Register */
#define REG_TWI0_MMR  (*(RwReg*)0x40084004U) /**< \brief (TWI0) Master Mode Register */
#define REG_TWI0_SMR  (*(RwReg*)0x40084008U) /**< \brief (TWI0) Slave Mode Register */
#define REG_TWI0_IADR (*(RwReg*)0x4008400CU) /**< \brief (TWI0) Internal Address Register */
#define REG_TWI0_CWGR (*(RwReg*)0x40084010U) /**< \brief (TWI0) Clock Waveform Generator Register */
#define REG_TWI0_SR   (*(RoReg*)0x40084020U) /**< \brief (TWI0) Status Register */
#define REG_TWI0_IER  (*(WoReg*)0x40084024U) /**< \brief (TWI0) Interrupt Enable Register */
#define REG_TWI0_IDR  (*(WoReg*)0x40084028U) /**< \brief (TWI0) Interrupt Disable Register */
#define REG_TWI0_IMR  (*(RoReg*)0x4008402CU) /**< \brief (TWI0) Interrupt Mask Register */
#define REG_TWI0_RHR  (*(RoReg*)0x40084030U) /**< \brief (TWI0) Receive Holding Register */
#define REG_TWI0_THR  (*(WoReg*)0x40084034U) /**< \brief (TWI0) Transmit Holding Register */
#define REG_TWI0_RPR  (*(RwReg*)0x40084100U) /**< \brief (TWI0) Receive Pointer Register */
#define REG_TWI0_RCR  (*(RwReg*)0x40084104U) /**< \brief (TWI0) Receive Counter Register */
#define REG_TWI0_TPR  (*(RwReg*)0x40084108U) /**< \brief (TWI0) Transmit Pointer Register */
#define REG_TWI0_TCR  (*(RwReg*)0x4008410CU) /**< \brief (TWI0) Transmit Counter Register */
#define REG_TWI0_RNPR (*(RwReg*)0x40084110U) /**< \brief (TWI0) Receive Next Pointer Register */
#define REG_TWI0_RNCR (*(RwReg*)0x40084114U) /**< \brief (TWI0) Receive Next Counter Register */
#define REG_TWI0_TNPR (*(RwReg*)0x40084118U) /**< \brief (TWI0) Transmit Next Pointer Register */
#define REG_TWI0_TNCR (*(RwReg*)0x4008411CU) /**< \brief (TWI0) Transmit Next Counter Register */
#define REG_TWI0_PTCR (*(WoReg*)0x40084120U) /**< \brief (TWI0) Transfer Control Register */
#define REG_TWI0_PTSR (*(RoReg*)0x40084124U) /**< \brief (TWI0) Transfer Status Register */
#endif /* (defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */

#endif /* _SAM3U_TWI0_INSTANCE_ */