/**
 * \file
 *
 * Copyright (c) 2013 Atmel Corporation. All rights reserved.
 *
 * \asf_license_start
 *
 * \page License
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
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 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. The name of Atmel may not be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 4. This software may only be redistributed and used in connection with an
 *    Atmel microcontroller product.
 *
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 */

#ifndef _SAM4E_TWI_COMPONENT_
#define _SAM4E_TWI_COMPONENT_

/* ============================================================================= */
/**  SOFTWARE API DEFINITION FOR Two-wire Interface */
/* ============================================================================= */
/** \addtogroup SAM4E_TWI Two-wire Interface */
/*@{*/

#if !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__))
/** \brief Twi hardware registers */
typedef struct {
  WoReg TWI_CR;           /**< \brief (Twi Offset: 0x00) Control Register */
  RwReg TWI_MMR;          /**< \brief (Twi Offset: 0x04) Master Mode Register */
  RwReg TWI_SMR;          /**< \brief (Twi Offset: 0x08) Slave Mode Register */
  RwReg TWI_IADR;         /**< \brief (Twi Offset: 0x0C) Internal Address Register */
  RwReg TWI_CWGR;         /**< \brief (Twi Offset: 0x10) Clock Waveform Generator Register */
  RoReg Reserved1[3];
  RoReg TWI_SR;           /**< \brief (Twi Offset: 0x20) Status Register */
  WoReg TWI_IER;          /**< \brief (Twi Offset: 0x24) Interrupt Enable Register */
  WoReg TWI_IDR;          /**< \brief (Twi Offset: 0x28) Interrupt Disable Register */
  RoReg TWI_IMR;          /**< \brief (Twi Offset: 0x2C) Interrupt Mask Register */
  RoReg TWI_RHR;          /**< \brief (Twi Offset: 0x30) Receive Holding Register */
  WoReg TWI_THR;          /**< \brief (Twi Offset: 0x34) Transmit Holding Register */
  RoReg Reserved2[43];
  RwReg TWI_WPROT_MODE;   /**< \brief (Twi Offset: 0xE4) Protection Mode Register */
  RoReg TWI_WPROT_STATUS; /**< \brief (Twi Offset: 0xE8) Protection Status Register */
  RoReg Reserved3[5];
  RwReg TWI_RPR;          /**< \brief (Twi Offset: 0x100) Receive Pointer Register */
  RwReg TWI_RCR;          /**< \brief (Twi Offset: 0x104) Receive Counter Register */
  RwReg TWI_TPR;          /**< \brief (Twi Offset: 0x108) Transmit Pointer Register */
  RwReg TWI_TCR;          /**< \brief (Twi Offset: 0x10C) Transmit Counter Register */
  RwReg TWI_RNPR;         /**< \brief (Twi Offset: 0x110) Receive Next Pointer Register */
  RwReg TWI_RNCR;         /**< \brief (Twi Offset: 0x114) Receive Next Counter Register */
  RwReg TWI_TNPR;         /**< \brief (Twi Offset: 0x118) Transmit Next Pointer Register */
  RwReg TWI_TNCR;         /**< \brief (Twi Offset: 0x11C) Transmit Next Counter Register */
  WoReg TWI_PTCR;         /**< \brief (Twi Offset: 0x120) Transfer Control Register */
  RoReg TWI_PTSR;         /**< \brief (Twi Offset: 0x124) Transfer Status Register */
} Twi;
#endif /* !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */
/* -------- TWI_CR : (TWI Offset: 0x00) Control Register -------- */
#define TWI_CR_START (0x1u << 0) /**< \brief (TWI_CR) Send a START Condition */
#define TWI_CR_STOP (0x1u << 1) /**< \brief (TWI_CR) Send a STOP Condition */
#define TWI_CR_MSEN (0x1u << 2) /**< \brief (TWI_CR) TWI Master Mode Enabled */
#define TWI_CR_MSDIS (0x1u << 3) /**< \brief (TWI_CR) TWI Master Mode Disabled */
#define TWI_CR_SVEN (0x1u << 4) /**< \brief (TWI_CR) TWI Slave Mode Enabled */
#define TWI_CR_SVDIS (0x1u << 5) /**< \brief (TWI_CR) TWI Slave Mode Disabled */
#define TWI_CR_QUICK (0x1u << 6) /**< \brief (TWI_CR) SMBUS Quick Command */
#define TWI_CR_SWRST (0x1u << 7) /**< \brief (TWI_CR) Software Reset */
/* -------- TWI_MMR : (TWI Offset: 0x04) Master Mode Register -------- */
#define TWI_MMR_IADRSZ_Pos 8
#define TWI_MMR_IADRSZ_Msk (0x3u << TWI_MMR_IADRSZ_Pos) /**< \brief (TWI_MMR) Internal Device Address Size */
#define   TWI_MMR_IADRSZ_NONE (0x0u << 8) /**< \brief (TWI_MMR) No internal device address */
#define   TWI_MMR_IADRSZ_1_BYTE (0x1u << 8) /**< \brief (TWI_MMR) One-byte internal device address */
#define   TWI_MMR_IADRSZ_2_BYTE (0x2u << 8) /**< \brief (TWI_MMR) Two-byte internal device address */
#define   TWI_MMR_IADRSZ_3_BYTE (0x3u << 8) /**< \brief (TWI_MMR) Three-byte internal device address */
#define TWI_MMR_MREAD (0x1u << 12) /**< \brief (TWI_MMR) Master Read Direction */
#define TWI_MMR_DADR_Pos 16
#define TWI_MMR_DADR_Msk (0x7fu << TWI_MMR_DADR_Pos) /**< \brief (TWI_MMR) Device Address */
#define TWI_MMR_DADR(value) ((TWI_MMR_DADR_Msk & ((value) << TWI_MMR_DADR_Pos)))
/* -------- TWI_SMR : (TWI Offset: 0x08) Slave Mode Register -------- */
#define TWI_SMR_SADR_Pos 16
#define TWI_SMR_SADR_Msk (0x7fu << TWI_SMR_SADR_Pos) /**< \brief (TWI_SMR) Slave Address */
#define TWI_SMR_SADR(value) ((TWI_SMR_SADR_Msk & ((value) << TWI_SMR_SADR_Pos)))
/* -------- TWI_IADR : (TWI Offset: 0x0C) Internal Address Register -------- */
#define TWI_IADR_IADR_Pos 0
#define TWI_IADR_IADR_Msk (0xffffffu << TWI_IADR_IADR_Pos) /**< \brief (TWI_IADR) Internal Address */
#define TWI_IADR_IADR(value) ((TWI_IADR_IADR_Msk & ((value) << TWI_IADR_IADR_Pos)))
/* -------- TWI_CWGR : (TWI Offset: 0x10) Clock Waveform Generator Register -------- */
#define TWI_CWGR_CLDIV_Pos 0
#define TWI_CWGR_CLDIV_Msk (0xffu << TWI_CWGR_CLDIV_Pos) /**< \brief (TWI_CWGR) Clock Low Divider */
#define TWI_CWGR_CLDIV(value) ((TWI_CWGR_CLDIV_Msk & ((value) << TWI_CWGR_CLDIV_Pos)))
#define TWI_CWGR_CHDIV_Pos 8
#define TWI_CWGR_CHDIV_Msk (0xffu << TWI_CWGR_CHDIV_Pos) /**< \brief (TWI_CWGR) Clock High Divider */
#define TWI_CWGR_CHDIV(value) ((TWI_CWGR_CHDIV_Msk & ((value) << TWI_CWGR_CHDIV_Pos)))
#define TWI_CWGR_CKDIV_Pos 16
#define TWI_CWGR_CKDIV_Msk (0x7u << TWI_CWGR_CKDIV_Pos) /**< \brief (TWI_CWGR) Clock Divider */
#define TWI_CWGR_CKDIV(value) ((TWI_CWGR_CKDIV_Msk & ((value) << TWI_CWGR_CKDIV_Pos)))
/* -------- TWI_SR : (TWI Offset: 0x20) Status Register -------- */
#define TWI_SR_TXCOMP (0x1u << 0) /**< \brief (TWI_SR) Transmission Completed (automatically set / reset) */
#define TWI_SR_RXRDY (0x1u << 1) /**< \brief (TWI_SR) Receive Holding Register Ready (automatically set / reset) */
#define TWI_SR_TXRDY (0x1u << 2) /**< \brief (TWI_SR) Transmit Holding Register Ready (automatically set / reset) */
#define TWI_SR_SVREAD (0x1u << 3) /**< \brief (TWI_SR) Slave Read (automatically set / reset) */
#define TWI_SR_SVACC (0x1u << 4) /**< \brief (TWI_SR) Slave Access (automatically set / reset) */
#define TWI_SR_GACC (0x1u << 5) /**< \brief (TWI_SR) General Call Access (clear on read) */
#define TWI_SR_OVRE (0x1u << 6) /**< \brief (TWI_SR) Overrun Error (clear on read) */
#define TWI_SR_NACK (0x1u << 8) /**< \brief (TWI_SR) Not Acknowledged (clear on read) */
#define TWI_SR_ARBLST (0x1u << 9) /**< \brief (TWI_SR) Arbitration Lost (clear on read) */
#define TWI_SR_SCLWS (0x1u << 10) /**< \brief (TWI_SR) Clock Wait State (automatically set / reset) */
#define TWI_SR_EOSACC (0x1u << 11) /**< \brief (TWI_SR) End Of Slave Access (clear on read) */
#define TWI_SR_ENDRX (0x1u << 12) /**< \brief (TWI_SR) End of RX buffer */
#define TWI_SR_ENDTX (0x1u << 13) /**< \brief (TWI_SR) End of TX buffer */
#define TWI_SR_RXBUFF (0x1u << 14) /**< \brief (TWI_SR) RX Buffer Full */
#define TWI_SR_TXBUFE (0x1u << 15) /**< \brief (TWI_SR) TX Buffer Empty */
/* -------- TWI_IER : (TWI Offset: 0x24) Interrupt Enable Register -------- */
#define TWI_IER_TXCOMP (0x1u << 0) /**< \brief (TWI_IER) Transmission Completed Interrupt Enable */
#define TWI_IER_RXRDY (0x1u << 1) /**< \brief (TWI_IER) Receive Holding Register Ready Interrupt Enable */
#define TWI_IER_TXRDY (0x1u << 2) /**< \brief (TWI_IER) Transmit Holding Register Ready Interrupt Enable */
#define TWI_IER_SVACC (0x1u << 4) /**< \brief (TWI_IER) Slave Access Interrupt Enable */
#define TWI_IER_GACC (0x1u << 5) /**< \brief (TWI_IER) General Call Access Interrupt Enable */
#define TWI_IER_OVRE (0x1u << 6) /**< \brief (TWI_IER) Overrun Error Interrupt Enable */
#define TWI_IER_NACK (0x1u << 8) /**< \brief (TWI_IER) Not Acknowledge Interrupt Enable */
#define TWI_IER_ARBLST (0x1u << 9) /**< \brief (TWI_IER) Arbitration Lost Interrupt Enable */
#define TWI_IER_SCL_WS (0x1u << 10) /**< \brief (TWI_IER) Clock Wait State Interrupt Enable */
#define TWI_IER_EOSACC (0x1u << 11) /**< \brief (TWI_IER) End Of Slave Access Interrupt Enable */
#define TWI_IER_ENDRX (0x1u << 12) /**< \brief (TWI_IER) End of Receive Buffer Interrupt Enable */
#define TWI_IER_ENDTX (0x1u << 13) /**< \brief (TWI_IER) End of Transmit Buffer Interrupt Enable */
#define TWI_IER_RXBUFF (0x1u << 14) /**< \brief (TWI_IER) Receive Buffer Full Interrupt Enable */
#define TWI_IER_TXBUFE (0x1u << 15) /**< \brief (TWI_IER) Transmit Buffer Empty Interrupt Enable */
/* -------- TWI_IDR : (TWI Offset: 0x28) Interrupt Disable Register -------- */
#define TWI_IDR_TXCOMP (0x1u << 0) /**< \brief (TWI_IDR) Transmission Completed Interrupt Disable */
#define TWI_IDR_RXRDY (0x1u << 1) /**< \brief (TWI_IDR) Receive Holding Register Ready Interrupt Disable */
#define TWI_IDR_TXRDY (0x1u << 2) /**< \brief (TWI_IDR) Transmit Holding Register Ready Interrupt Disable */
#define TWI_IDR_SVACC (0x1u << 4) /**< \brief (TWI_IDR) Slave Access Interrupt Disable */
#define TWI_IDR_GACC (0x1u << 5) /**< \brief (TWI_IDR) General Call Access Interrupt Disable */
#define TWI_IDR_OVRE (0x1u << 6) /**< \brief (TWI_IDR) Overrun Error Interrupt Disable */
#define TWI_IDR_NACK (0x1u << 8) /**< \brief (TWI_IDR) Not Acknowledge Interrupt Disable */
#define TWI_IDR_ARBLST (0x1u << 9) /**< \brief (TWI_IDR) Arbitration Lost Interrupt Disable */
#define TWI_IDR_SCL_WS (0x1u << 10) /**< \brief (TWI_IDR) Clock Wait State Interrupt Disable */
#define TWI_IDR_EOSACC (0x1u << 11) /**< \brief (TWI_IDR) End Of Slave Access Interrupt Disable */
#define TWI_IDR_ENDRX (0x1u << 12) /**< \brief (TWI_IDR) End of Receive Buffer Interrupt Disable */
#define TWI_IDR_ENDTX (0x1u << 13) /**< \brief (TWI_IDR) End of Transmit Buffer Interrupt Disable */
#define TWI_IDR_RXBUFF (0x1u << 14) /**< \brief (TWI_IDR) Receive Buffer Full Interrupt Disable */
#define TWI_IDR_TXBUFE (0x1u << 15) /**< \brief (TWI_IDR) Transmit Buffer Empty Interrupt Disable */
/* -------- TWI_IMR : (TWI Offset: 0x2C) Interrupt Mask Register -------- */
#define TWI_IMR_TXCOMP (0x1u << 0) /**< \brief (TWI_IMR) Transmission Completed Interrupt Mask */
#define TWI_IMR_RXRDY (0x1u << 1) /**< \brief (TWI_IMR) Receive Holding Register Ready Interrupt Mask */
#define TWI_IMR_TXRDY (0x1u << 2) /**< \brief (TWI_IMR) Transmit Holding Register Ready Interrupt Mask */
#define TWI_IMR_SVACC (0x1u << 4) /**< \brief (TWI_IMR) Slave Access Interrupt Mask */
#define TWI_IMR_GACC (0x1u << 5) /**< \brief (TWI_IMR) General Call Access Interrupt Mask */
#define TWI_IMR_OVRE (0x1u << 6) /**< \brief (TWI_IMR) Overrun Error Interrupt Mask */
#define TWI_IMR_NACK (0x1u << 8) /**< \brief (TWI_IMR) Not Acknowledge Interrupt Mask */
#define TWI_IMR_ARBLST (0x1u << 9) /**< \brief (TWI_IMR) Arbitration Lost Interrupt Mask */
#define TWI_IMR_SCL_WS (0x1u << 10) /**< \brief (TWI_IMR) Clock Wait State Interrupt Mask */
#define TWI_IMR_EOSACC (0x1u << 11) /**< \brief (TWI_IMR) End Of Slave Access Interrupt Mask */
#define TWI_IMR_ENDRX (0x1u << 12) /**< \brief (TWI_IMR) End of Receive Buffer Interrupt Mask */
#define TWI_IMR_ENDTX (0x1u << 13) /**< \brief (TWI_IMR) End of Transmit Buffer Interrupt Mask */
#define TWI_IMR_RXBUFF (0x1u << 14) /**< \brief (TWI_IMR) Receive Buffer Full Interrupt Mask */
#define TWI_IMR_TXBUFE (0x1u << 15) /**< \brief (TWI_IMR) Transmit Buffer Empty Interrupt Mask */
/* -------- TWI_RHR : (TWI Offset: 0x30) Receive Holding Register -------- */
#define TWI_RHR_RXDATA_Pos 0
#define TWI_RHR_RXDATA_Msk (0xffu << TWI_RHR_RXDATA_Pos) /**< \brief (TWI_RHR) Master or Slave Receive Holding Data */
/* -------- TWI_THR : (TWI Offset: 0x34) Transmit Holding Register -------- */
#define TWI_THR_TXDATA_Pos 0
#define TWI_THR_TXDATA_Msk (0xffu << TWI_THR_TXDATA_Pos) /**< \brief (TWI_THR) Master or Slave Transmit Holding Data */
#define TWI_THR_TXDATA(value) ((TWI_THR_TXDATA_Msk & ((value) << TWI_THR_TXDATA_Pos)))
/* -------- TWI_WPROT_MODE : (TWI Offset: 0xE4) Protection Mode Register -------- */
#define TWI_WPROT_MODE_WPROT (0x1u << 0) /**< \brief (TWI_WPROT_MODE) Write protection bit */
#define TWI_WPROT_MODE_SECURITY_CODE_Pos 8
#define TWI_WPROT_MODE_SECURITY_CODE_Msk (0xffffffu << TWI_WPROT_MODE_SECURITY_CODE_Pos) /**< \brief (TWI_WPROT_MODE) Write protection mode security code */
#define TWI_WPROT_MODE_SECURITY_CODE(value) ((TWI_WPROT_MODE_SECURITY_CODE_Msk & ((value) << TWI_WPROT_MODE_SECURITY_CODE_Pos)))
/* -------- TWI_WPROT_STATUS : (TWI Offset: 0xE8) Protection Status Register -------- */
#define TWI_WPROT_STATUS_WPROTERR (0x1u << 0) /**< \brief (TWI_WPROT_STATUS) Write Protection Error */
#define TWI_WPROT_STATUS_WPROTADDR_Pos 8
#define TWI_WPROT_STATUS_WPROTADDR_Msk (0xffffffu << TWI_WPROT_STATUS_WPROTADDR_Pos) /**< \brief (TWI_WPROT_STATUS) Write Protection Error Address */
/* -------- TWI_RPR : (TWI Offset: 0x100) Receive Pointer Register -------- */
#define TWI_RPR_RXPTR_Pos 0
#define TWI_RPR_RXPTR_Msk (0xffffffffu << TWI_RPR_RXPTR_Pos) /**< \brief (TWI_RPR) Receive Pointer Register */
#define TWI_RPR_RXPTR(value) ((TWI_RPR_RXPTR_Msk & ((value) << TWI_RPR_RXPTR_Pos)))
/* -------- TWI_RCR : (TWI Offset: 0x104) Receive Counter Register -------- */
#define TWI_RCR_RXCTR_Pos 0
#define TWI_RCR_RXCTR_Msk (0xffffu << TWI_RCR_RXCTR_Pos) /**< \brief (TWI_RCR) Receive Counter Register */
#define TWI_RCR_RXCTR(value) ((TWI_RCR_RXCTR_Msk & ((value) << TWI_RCR_RXCTR_Pos)))
/* -------- TWI_TPR : (TWI Offset: 0x108) Transmit Pointer Register -------- */
#define TWI_TPR_TXPTR_Pos 0
#define TWI_TPR_TXPTR_Msk (0xffffffffu << TWI_TPR_TXPTR_Pos) /**< \brief (TWI_TPR) Transmit Counter Register */
#define TWI_TPR_TXPTR(value) ((TWI_TPR_TXPTR_Msk & ((value) << TWI_TPR_TXPTR_Pos)))
/* -------- TWI_TCR : (TWI Offset: 0x10C) Transmit Counter Register -------- */
#define TWI_TCR_TXCTR_Pos 0
#define TWI_TCR_TXCTR_Msk (0xffffu << TWI_TCR_TXCTR_Pos) /**< \brief (TWI_TCR) Transmit Counter Register */
#define TWI_TCR_TXCTR(value) ((TWI_TCR_TXCTR_Msk & ((value) << TWI_TCR_TXCTR_Pos)))
/* -------- TWI_RNPR : (TWI Offset: 0x110) Receive Next Pointer Register -------- */
#define TWI_RNPR_RXNPTR_Pos 0
#define TWI_RNPR_RXNPTR_Msk (0xffffffffu << TWI_RNPR_RXNPTR_Pos) /**< \brief (TWI_RNPR) Receive Next Pointer */
#define TWI_RNPR_RXNPTR(value) ((TWI_RNPR_RXNPTR_Msk & ((value) << TWI_RNPR_RXNPTR_Pos)))
/* -------- TWI_RNCR : (TWI Offset: 0x114) Receive Next Counter Register -------- */
#define TWI_RNCR_RXNCTR_Pos 0
#define TWI_RNCR_RXNCTR_Msk (0xffffu << TWI_RNCR_RXNCTR_Pos) /**< \brief (TWI_RNCR) Receive Next Counter */
#define TWI_RNCR_RXNCTR(value) ((TWI_RNCR_RXNCTR_Msk & ((value) << TWI_RNCR_RXNCTR_Pos)))
/* -------- TWI_TNPR : (TWI Offset: 0x118) Transmit Next Pointer Register -------- */
#define TWI_TNPR_TXNPTR_Pos 0
#define TWI_TNPR_TXNPTR_Msk (0xffffffffu << TWI_TNPR_TXNPTR_Pos) /**< \brief (TWI_TNPR) Transmit Next Pointer */
#define TWI_TNPR_TXNPTR(value) ((TWI_TNPR_TXNPTR_Msk & ((value) << TWI_TNPR_TXNPTR_Pos)))
/* -------- TWI_TNCR : (TWI Offset: 0x11C) Transmit Next Counter Register -------- */
#define TWI_TNCR_TXNCTR_Pos 0
#define TWI_TNCR_TXNCTR_Msk (0xffffu << TWI_TNCR_TXNCTR_Pos) /**< \brief (TWI_TNCR) Transmit Counter Next */
#define TWI_TNCR_TXNCTR(value) ((TWI_TNCR_TXNCTR_Msk & ((value) << TWI_TNCR_TXNCTR_Pos)))
/* -------- TWI_PTCR : (TWI Offset: 0x120) Transfer Control Register -------- */
#define TWI_PTCR_RXTEN (0x1u << 0) /**< \brief (TWI_PTCR) Receiver Transfer Enable */
#define TWI_PTCR_RXTDIS (0x1u << 1) /**< \brief (TWI_PTCR) Receiver Transfer Disable */
#define TWI_PTCR_TXTEN (0x1u << 8) /**< \brief (TWI_PTCR) Transmitter Transfer Enable */
#define TWI_PTCR_TXTDIS (0x1u << 9) /**< \brief (TWI_PTCR) Transmitter Transfer Disable */
/* -------- TWI_PTSR : (TWI Offset: 0x124) Transfer Status Register -------- */
#define TWI_PTSR_RXTEN (0x1u << 0) /**< \brief (TWI_PTSR) Receiver Transfer Enable */
#define TWI_PTSR_TXTEN (0x1u << 8) /**< \brief (TWI_PTSR) Transmitter Transfer Enable */

/*@}*/


#endif /* _SAM4E_TWI_COMPONENT_ */