/** * \file * * Copyright (c) 2014-2015 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. * * 2. Redistributions in binary form must reproduce the above copyright notice, * 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. * * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * \asf_license_stop * */ /* * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a> */ #ifndef _SAMG55_TWI_COMPONENT_ #define _SAMG55_TWI_COMPONENT_ /* ============================================================================= */ /** SOFTWARE API DEFINITION FOR Two wire Interface */ /* ============================================================================= */ /** \addtogroup SAMG55_TWI Two wire Interface */ /*@{*/ #if !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) /** \brief Twi hardware registers */ typedef struct { __O uint32_t TWI_CR; /**< \brief (Twi Offset: 0x000) TWI Control Register */ __IO uint32_t TWI_MMR; /**< \brief (Twi Offset: 0x004) TWI Master Mode Register */ __IO uint32_t TWI_SMR; /**< \brief (Twi Offset: 0x008) TWI Slave Mode Register */ __IO uint32_t TWI_IADR; /**< \brief (Twi Offset: 0x00C) TWI Internal Address Register */ __IO uint32_t TWI_CWGR; /**< \brief (Twi Offset: 0x010) TWI Clock Waveform Generator Register */ __I uint32_t Reserved1[3]; __I uint32_t TWI_SR; /**< \brief (Twi Offset: 0x020) TWI Status Register */ __O uint32_t TWI_IER; /**< \brief (Twi Offset: 0x024) TWI Interrupt Enable Register */ __O uint32_t TWI_IDR; /**< \brief (Twi Offset: 0x028) TWI Interrupt Disable Register */ __I uint32_t TWI_IMR; /**< \brief (Twi Offset: 0x02C) TWI Interrupt Mask Register */ __I uint32_t TWI_RHR; /**< \brief (Twi Offset: 0x030) TWI Receive Holding Register */ __O uint32_t TWI_THR; /**< \brief (Twi Offset: 0x034) TWI Transmit Holding Register */ __IO uint32_t TWI_SMBTR; /**< \brief (Twi Offset: 0x038) TWI SMBus Timing Register */ __I uint32_t Reserved2[1]; __IO uint32_t TWI_ACR; /**< \brief (Twi Offset: 0x040) TWI Alternative Command Register */ __IO uint32_t TWI_FILTR; /**< \brief (Twi Offset: 0x044) TWI Filter Register */ __I uint32_t Reserved3[1]; __IO uint32_t TWI_SWMR; /**< \brief (Twi Offset: 0x04C) TWI SleepWalking Matching Register */ __I uint32_t Reserved4[37]; __IO uint32_t TWI_WPMR; /**< \brief (Twi Offset: 0x0E4) TWI Write Protection Mode Register */ __I uint32_t TWI_WPSR; /**< \brief (Twi Offset: 0x0E8) TWI Write Protection Status Register */ __I uint32_t Reserved5[5]; __IO uint32_t TWI_RPR; /**< \brief (Twi Offset: 0x100) Receive Pointer Register */ __IO uint32_t TWI_RCR; /**< \brief (Twi Offset: 0x104) Receive Counter Register */ __IO uint32_t TWI_TPR; /**< \brief (Twi Offset: 0x108) Transmit Pointer Register */ __IO uint32_t TWI_TCR; /**< \brief (Twi Offset: 0x10C) Transmit Counter Register */ __IO uint32_t TWI_RNPR; /**< \brief (Twi Offset: 0x110) Receive Next Pointer Register */ __IO uint32_t TWI_RNCR; /**< \brief (Twi Offset: 0x114) Receive Next Counter Register */ __IO uint32_t TWI_TNPR; /**< \brief (Twi Offset: 0x118) Transmit Next Pointer Register */ __IO uint32_t TWI_TNCR; /**< \brief (Twi Offset: 0x11C) Transmit Next Counter Register */ __O uint32_t TWI_PTCR; /**< \brief (Twi Offset: 0x120) Transfer Control Register */ __I uint32_t TWI_PTSR; /**< \brief (Twi Offset: 0x124) Transfer Status Register */ } Twi; #endif /* !(defined(__ASSEMBLY__) || defined(__IAR_SYSTEMS_ASM__)) */ /* -------- TWI_CR : (TWI Offset: 0x000) TWI 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 */ #define TWI_CR_HSEN (0x1u << 8) /**< \brief (TWI_CR) TWI High-Speed Mode Enabled */ #define TWI_CR_HSDIS (0x1u << 9) /**< \brief (TWI_CR) TWI High-Speed Mode Disabled */ #define TWI_CR_SMBEN (0x1u << 10) /**< \brief (TWI_CR) SMBus Mode Enabled */ #define TWI_CR_SMBDIS (0x1u << 11) /**< \brief (TWI_CR) SMBus Mode Disabled */ #define TWI_CR_PECEN (0x1u << 12) /**< \brief (TWI_CR) Packet Error Checking Enable */ #define TWI_CR_PECDIS (0x1u << 13) /**< \brief (TWI_CR) Packet Error Checking Disable */ #define TWI_CR_PECRQ (0x1u << 14) /**< \brief (TWI_CR) PEC Request */ #define TWI_CR_CLEAR (0x1u << 15) /**< \brief (TWI_CR) Bus CLEAR Command */ #define TWI_CR_ACMEN (0x1u << 16) /**< \brief (TWI_CR) Alternative Command Mode Enable */ #define TWI_CR_ACMDIS (0x1u << 17) /**< \brief (TWI_CR) Alternative Command Mode Disable */ #define TWI_CR_THRCLR (0x1u << 24) /**< \brief (TWI_CR) Transmit Holding Register Clear */ #define TWI_CR_LOCKCLR (0x1u << 26) /**< \brief (TWI_CR) Lock Clear */ /* -------- TWI_MMR : (TWI Offset: 0x004) TWI 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: 0x008) TWI Slave Mode Register -------- */ #define TWI_SMR_NACKEN (0x1u << 0) /**< \brief (TWI_SMR) Slave Receiver Data Phase NACK Enable */ #define TWI_SMR_SMDA (0x1u << 2) /**< \brief (TWI_SMR) SMBus Default Address */ #define TWI_SMR_SMHH (0x1u << 3) /**< \brief (TWI_SMR) SMBus Host Header */ #define TWI_SMR_SCLWSDIS (0x1u << 6) /**< \brief (TWI_SMR) Clock Wait State Disable */ #define TWI_SMR_MASK_Pos 8 #define TWI_SMR_MASK_Msk (0x7fu << TWI_SMR_MASK_Pos) /**< \brief (TWI_SMR) Slave Address Mask */ #define TWI_SMR_MASK(value) ((TWI_SMR_MASK_Msk & ((value) << TWI_SMR_MASK_Pos))) #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))) #define TWI_SMR_SADR1EN (0x1u << 28) /**< \brief (TWI_SMR) Slave Address 1 Enable */ #define TWI_SMR_SADR2EN (0x1u << 29) /**< \brief (TWI_SMR) Slave Address 2 Enable */ #define TWI_SMR_SADR3EN (0x1u << 30) /**< \brief (TWI_SMR) Slave Address 3 Enable */ #define TWI_SMR_DATAMEN (0x1u << 31) /**< \brief (TWI_SMR) Data Matching Enable */ /* -------- TWI_IADR : (TWI Offset: 0x00C) TWI 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: 0x010) TWI 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))) #define TWI_CWGR_BRSRCCLK (0x1u << 20) /**< \brief (TWI_CWGR) Bit Rate Source Clock */ #define TWI_CWGR_BRSRCCLK_PERIPH_CLK (0x0u << 20) /**< \brief (TWI_CWGR) The peripheral clock is the source clock for the bit rate generation. */ #define TWI_CWGR_BRSRCCLK_PMC_PCK (0x1u << 20) /**< \brief (TWI_CWGR) PMC PCKx is the source clock for the bit rate generation, thus the bit rate can be independent of the core/peripheral clock. */ #define TWI_CWGR_HOLD_Pos 24 #define TWI_CWGR_HOLD_Msk (0x1fu << TWI_CWGR_HOLD_Pos) /**< \brief (TWI_CWGR) TWD Hold Time Versus TWCK Falling */ #define TWI_CWGR_HOLD(value) ((TWI_CWGR_HOLD_Msk & ((value) << TWI_CWGR_HOLD_Pos))) /* -------- TWI_SR : (TWI Offset: 0x020) TWI 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_UNRE (0x1u << 7) /**< \brief (TWI_SR) Underrun 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 */ #define TWI_SR_MCACK (0x1u << 16) /**< \brief (TWI_SR) Master Code Acknowledge */ #define TWI_SR_TOUT (0x1u << 18) /**< \brief (TWI_SR) Timeout Error */ #define TWI_SR_PECERR (0x1u << 19) /**< \brief (TWI_SR) PEC Error */ #define TWI_SR_SMBDAM (0x1u << 20) /**< \brief (TWI_SR) SMBus Default Address Match */ #define TWI_SR_SMBHHM (0x1u << 21) /**< \brief (TWI_SR) SMBus Host Header Address Match */ #define TWI_SR_LOCK (0x1u << 23) /**< \brief (TWI_SR) TWI Lock due to Frame Errors */ #define TWI_SR_SCL (0x1u << 24) /**< \brief (TWI_SR) SCL line value */ #define TWI_SR_SDA (0x1u << 25) /**< \brief (TWI_SR) SDA line value */ /* -------- TWI_IER : (TWI Offset: 0x024) TWI 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_UNRE (0x1u << 7) /**< \brief (TWI_IER) Underrun 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 */ #define TWI_IER_MCACK (0x1u << 16) /**< \brief (TWI_IER) Master Code Acknowledge Interrupt Enable */ #define TWI_IER_TOUT (0x1u << 18) /**< \brief (TWI_IER) Timeout Error Interrupt Enable */ #define TWI_IER_PECERR (0x1u << 19) /**< \brief (TWI_IER) PEC Error Interrupt Enable */ #define TWI_IER_SMBDAM (0x1u << 20) /**< \brief (TWI_IER) SMBus Default Address Match Interrupt Enable */ #define TWI_IER_SMBHHM (0x1u << 21) /**< \brief (TWI_IER) SMBus Host Header Address Match Interrupt Enable */ /* -------- TWI_IDR : (TWI Offset: 0x028) TWI 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_UNRE (0x1u << 7) /**< \brief (TWI_IDR) Underrun 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 */ #define TWI_IDR_MCACK (0x1u << 16) /**< \brief (TWI_IDR) Master Code Acknowledge Interrupt Disable */ #define TWI_IDR_TOUT (0x1u << 18) /**< \brief (TWI_IDR) Timeout Error Interrupt Disable */ #define TWI_IDR_PECERR (0x1u << 19) /**< \brief (TWI_IDR) PEC Error Interrupt Disable */ #define TWI_IDR_SMBDAM (0x1u << 20) /**< \brief (TWI_IDR) SMBus Default Address Match Interrupt Disable */ #define TWI_IDR_SMBHHM (0x1u << 21) /**< \brief (TWI_IDR) SMBus Host Header Address Match Interrupt Disable */ /* -------- TWI_IMR : (TWI Offset: 0x02C) TWI 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_UNRE (0x1u << 7) /**< \brief (TWI_IMR) Underrun 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 */ #define TWI_IMR_MCACK (0x1u << 16) /**< \brief (TWI_IMR) Master Code Acknowledge Interrupt Mask */ #define TWI_IMR_TOUT (0x1u << 18) /**< \brief (TWI_IMR) Timeout Error Interrupt Mask */ #define TWI_IMR_PECERR (0x1u << 19) /**< \brief (TWI_IMR) PEC Error Interrupt Mask */ #define TWI_IMR_SMBDAM (0x1u << 20) /**< \brief (TWI_IMR) SMBus Default Address Match Interrupt Mask */ #define TWI_IMR_SMBHHM (0x1u << 21) /**< \brief (TWI_IMR) SMBus Host Header Address Match Interrupt Mask */ /* -------- TWI_RHR : (TWI Offset: 0x030) TWI 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: 0x034) TWI 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_SMBTR : (TWI Offset: 0x038) TWI SMBus Timing Register -------- */ #define TWI_SMBTR_PRESC_Pos 0 #define TWI_SMBTR_PRESC_Msk (0xfu << TWI_SMBTR_PRESC_Pos) /**< \brief (TWI_SMBTR) SMBus Clock Prescaler */ #define TWI_SMBTR_PRESC(value) ((TWI_SMBTR_PRESC_Msk & ((value) << TWI_SMBTR_PRESC_Pos))) #define TWI_SMBTR_TLOWS_Pos 8 #define TWI_SMBTR_TLOWS_Msk (0xffu << TWI_SMBTR_TLOWS_Pos) /**< \brief (TWI_SMBTR) Slave Clock Stretch Maximum Cycles */ #define TWI_SMBTR_TLOWS(value) ((TWI_SMBTR_TLOWS_Msk & ((value) << TWI_SMBTR_TLOWS_Pos))) #define TWI_SMBTR_TLOWM_Pos 16 #define TWI_SMBTR_TLOWM_Msk (0xffu << TWI_SMBTR_TLOWM_Pos) /**< \brief (TWI_SMBTR) Master Clock Stretch Maximum Cycles */ #define TWI_SMBTR_TLOWM(value) ((TWI_SMBTR_TLOWM_Msk & ((value) << TWI_SMBTR_TLOWM_Pos))) #define TWI_SMBTR_THMAX_Pos 24 #define TWI_SMBTR_THMAX_Msk (0xffu << TWI_SMBTR_THMAX_Pos) /**< \brief (TWI_SMBTR) Clock High Maximum Cycles */ #define TWI_SMBTR_THMAX(value) ((TWI_SMBTR_THMAX_Msk & ((value) << TWI_SMBTR_THMAX_Pos))) /* -------- TWI_ACR : (TWI Offset: 0x040) TWI Alternative Command Register -------- */ #define TWI_ACR_DATAL_Pos 0 #define TWI_ACR_DATAL_Msk (0xffu << TWI_ACR_DATAL_Pos) /**< \brief (TWI_ACR) Data Length */ #define TWI_ACR_DATAL(value) ((TWI_ACR_DATAL_Msk & ((value) << TWI_ACR_DATAL_Pos))) #define TWI_ACR_DIR (0x1u << 8) /**< \brief (TWI_ACR) Transfer Direction */ #define TWI_ACR_PEC (0x1u << 9) /**< \brief (TWI_ACR) PEC Request (SMBus Mode only) */ #define TWI_ACR_NDATAL_Pos 16 #define TWI_ACR_NDATAL_Msk (0xffu << TWI_ACR_NDATAL_Pos) /**< \brief (TWI_ACR) Next Data Length */ #define TWI_ACR_NDATAL(value) ((TWI_ACR_NDATAL_Msk & ((value) << TWI_ACR_NDATAL_Pos))) #define TWI_ACR_NDIR (0x1u << 24) /**< \brief (TWI_ACR) Next Transfer Direction */ #define TWI_ACR_NPEC (0x1u << 25) /**< \brief (TWI_ACR) Next PEC Request (SMBus Mode only) */ /* -------- TWI_FILTR : (TWI Offset: 0x044) TWI Filter Register -------- */ #define TWI_FILTR_FILT (0x1u << 0) /**< \brief (TWI_FILTR) RX Digital Filter */ #define TWI_FILTR_PADFEN (0x1u << 1) /**< \brief (TWI_FILTR) PAD Filter Enable */ #define TWI_FILTR_PADFCFG (0x1u << 2) /**< \brief (TWI_FILTR) PAD Filter Config */ #define TWI_FILTR_THRES_Pos 8 #define TWI_FILTR_THRES_Msk (0x7u << TWI_FILTR_THRES_Pos) /**< \brief (TWI_FILTR) Digital Filter Threshold */ #define TWI_FILTR_THRES(value) ((TWI_FILTR_THRES_Msk & ((value) << TWI_FILTR_THRES_Pos))) /* -------- TWI_SWMR : (TWI Offset: 0x04C) TWI SleepWalking Matching Register -------- */ #define TWI_SWMR_SADR1_Pos 0 #define TWI_SWMR_SADR1_Msk (0x7fu << TWI_SWMR_SADR1_Pos) /**< \brief (TWI_SWMR) Slave Address 1 */ #define TWI_SWMR_SADR1(value) ((TWI_SWMR_SADR1_Msk & ((value) << TWI_SWMR_SADR1_Pos))) #define TWI_SWMR_SADR2_Pos 8 #define TWI_SWMR_SADR2_Msk (0x7fu << TWI_SWMR_SADR2_Pos) /**< \brief (TWI_SWMR) Slave Address 2 */ #define TWI_SWMR_SADR2(value) ((TWI_SWMR_SADR2_Msk & ((value) << TWI_SWMR_SADR2_Pos))) #define TWI_SWMR_SADR3_Pos 16 #define TWI_SWMR_SADR3_Msk (0x7fu << TWI_SWMR_SADR3_Pos) /**< \brief (TWI_SWMR) Slave Address 3 */ #define TWI_SWMR_SADR3(value) ((TWI_SWMR_SADR3_Msk & ((value) << TWI_SWMR_SADR3_Pos))) #define TWI_SWMR_DATAM_Pos 24 #define TWI_SWMR_DATAM_Msk (0xffu << TWI_SWMR_DATAM_Pos) /**< \brief (TWI_SWMR) Data Match */ #define TWI_SWMR_DATAM(value) ((TWI_SWMR_DATAM_Msk & ((value) << TWI_SWMR_DATAM_Pos))) /* -------- TWI_WPMR : (TWI Offset: 0x0E4) TWI Write Protection Mode Register -------- */ #define TWI_WPMR_WPEN (0x1u << 0) /**< \brief (TWI_WPMR) Write Protection Enable */ #define TWI_WPMR_WPKEY_Pos 8 #define TWI_WPMR_WPKEY_Msk (0xffffffu << TWI_WPMR_WPKEY_Pos) /**< \brief (TWI_WPMR) Write Protection Key */ #define TWI_WPMR_WPKEY_PASSWD (0x545749u << 8) /**< \brief (TWI_WPMR) Writing any other value in this field aborts the write operation of the WPEN bit.Always reads as 0 */ /* -------- TWI_WPSR : (TWI Offset: 0x0E8) TWI Write Protection Status Register -------- */ #define TWI_WPSR_WPVS (0x1u << 0) /**< \brief (TWI_WPSR) Write Protect Violation Status */ #define TWI_WPSR_WPVSRC_Pos 8 #define TWI_WPSR_WPVSRC_Msk (0xffffffu << TWI_WPSR_WPVSRC_Pos) /**< \brief (TWI_WPSR) Write Protection Violation Source */ /* -------- 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 */ #define TWI_PTCR_RXCBEN (0x1u << 16) /**< \brief (TWI_PTCR) Receiver Circular Buffer Enable */ #define TWI_PTCR_RXCBDIS (0x1u << 17) /**< \brief (TWI_PTCR) Receiver Circular Buffer Disable */ #define TWI_PTCR_TXCBEN (0x1u << 18) /**< \brief (TWI_PTCR) Transmitter Circular Buffer Enable */ #define TWI_PTCR_TXCBDIS (0x1u << 19) /**< \brief (TWI_PTCR) Transmitter Circular Buffer Disable */ #define TWI_PTCR_ERRCLR (0x1u << 24) /**< \brief (TWI_PTCR) Transfer Bus Error Clear */ /* -------- 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 */ #define TWI_PTSR_RXCBEN (0x1u << 16) /**< \brief (TWI_PTSR) Receiver Transfer Enable */ #define TWI_PTSR_TXCBEN (0x1u << 18) /**< \brief (TWI_PTSR) Transmitter Transfer Enable */ #define TWI_PTSR_ERR (0x1u << 24) /**< \brief (TWI_PTSR) Transfer Bus Error (clear on read) */ /*@}*/ #endif /* _SAMG55_TWI_COMPONENT_ */