flexcan.hpp

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/*
 * Copyright (C) 2018 Pavel Kirienko <pavel.kirienko@gmail.com>
 * Kinetis Port Author David Sidrane <david_s5@nscdg.com>
 * Bit definitions were copied from NuttX KINETIS CAN driver.
 */

#pragma once

#include <uavcan_kinetis/build_config.hpp>

#include <uavcan/uavcan.hpp>
#include <stdint.h>

#ifndef UAVCAN_CPP_VERSION
# error UAVCAN_CPP_VERSION
#endif

#if UAVCAN_CPP_VERSION < UAVCAN_CPP11
// #undef'ed at the end of this file
# define constexpr const
#endif

namespace uavcan_kinetis
{
namespace flexcan
{
enum { HWMaxMB = 16 };

union MBcsType
{
    volatile uint32_t w;
    struct
    {
        volatile uint32_t time_stamp : 16;
        volatile uint32_t dlc : 4;
        volatile uint32_t rtr : 1;
        volatile uint32_t ide : 1;
        volatile uint32_t srr : 1;
        volatile uint32_t res : 1;
        volatile uint32_t code : 4;
        volatile uint32_t res2 : 4;
    };
};

union FIFOcsType
{
    volatile uint32_t cs;
    struct
    {
        volatile uint32_t time_stamp : 16;
        volatile uint32_t dlc : 4;
        volatile uint32_t rtr : 1;
        volatile uint32_t ide : 1;
        volatile uint32_t srr : 1;
        volatile uint32_t res : 9;
    };
};

union IDType
{
    volatile uint32_t w;
    struct
    {
        volatile uint32_t ext : 29;
        volatile uint32_t resex : 3;
    };
    struct
    {
        volatile uint32_t res : 18;
        volatile uint32_t std : 11;
        volatile uint32_t resstd : 3;
    };
};

union FilterType
{
    volatile uint32_t w;
    struct
    {
        volatile uint32_t res : 1; // Bit 0 - Reserved
        volatile uint32_t ext : 29; // Bits 1 - 29 EID
    };
    struct
    {
        volatile uint32_t ress : 19; // Bits 0, 1-18 Reserved
        volatile uint32_t std : 11; // StD ID
    };
    struct
    {
        volatile uint32_t resc : 30; // Bits 0 - 29  Reserved
        volatile uint32_t ide : 1; // Bit 30 - EID
        volatile uint32_t rtr : 1; // Bit 31 Remote
    };
};

union DataType
{
    volatile uint32_t l;
    volatile uint32_t h;
    struct
    {
        volatile uint32_t b3 : 8;
        volatile uint32_t b2 : 8;
        volatile uint32_t b1 : 8;
        volatile uint32_t b0 : 8;
        volatile uint32_t b7 : 8;
        volatile uint32_t b6 : 8;
        volatile uint32_t b5 : 8;
        volatile uint32_t b4 : 8;
    };
};


struct MessageBufferType
{
    MBcsType CS;
    IDType ID;
    DataType data;
};

enum mb_code_tx
{
    TxMbInactive = 0x8,     
    TxMbAbort = 0x9,        
    TxMbDataOrRemote = 0xC, 
    TxMbTanswer = 0xE,      
    TxMbNotUsed = 0xF,      
};

struct RxFiFoType
{
    FIFOcsType CS;
    IDType ID;
    DataType data;
};

enum mb_code_rx
{
    kRxMbInactive = 0x0, 
    kRxMbFull = 0x2,     
    kRxMbEmpty = 0x4,    
    kRxMbOverrun = 0x6,  
    kRxMbBusy = 0x8,     
    kRxMbRanswer = 0xA,  
    kRxMbNotUsed = 0xF,  
};

struct CanType
{
    volatile uint32_t MCR;                  
    volatile uint32_t CTRL1;                
    volatile uint32_t TIMER;                
    uint32_t Reserved0;                     
    volatile uint32_t RXMGMASK;             
    volatile uint32_t RX14MASK;             
    volatile uint32_t RX15MASK;             
    volatile uint32_t ECR;                  
    volatile uint32_t ESR1;                 
    uint32_t Reserved1;                     
    volatile uint32_t IMASK1;               
    uint32_t Reserved2;                     
    volatile uint32_t IFLAG1;               
    volatile uint32_t CTRL2;                
    volatile uint32_t ESR2;                 
    uint32_t Reserved3;                     
    uint32_t Reserved4;                     
    volatile uint32_t CRCR;                 
    volatile uint32_t RXFGMASK;             
    volatile uint32_t RXFIR;                
    uint32_t RESERVED5[12];                 
    union
    {
        RxFiFoType fifo;
        MessageBufferType mb;
    } MB[HWMaxMB];
    uint32_t RESERVED6[448];                
    volatile FilterType RXIMR[HWMaxMB];         
};

/* Layout of Fifo, filters and Message buffers  */

enum { FiFo = 0 };
/* 0                       */
/* 1                       */
/* 2                       */
/* 3         Fifo          */
/* 4                       */
/* 5                       */
enum { FirstFilter = 6 };
/* 6                       */
/* 7                       */
/* 8         Filters       */
/* 9                       */
enum { NumHWFilters = 16 };
enum { NumMBinFiFoAndFilters = 10 };
/* 10                      */
/* 11                      */
/* 12                      */
/* 13 Tx Message Buffers   */
/* 14                      */
/* 15                      */
/*-- ----------------------*/

enum { TXMBMask = (0b111111 << NumMBinFiFoAndFilters)  };

/*   Address of the CAN registers */

CanType* const Can[UAVCAN_KINETIS_NUM_IFACES] =
{
    reinterpret_cast<CanType*>(0x40024000) // CAN0
#if UAVCAN_KINETIS_NUM_IFACES > 1
    ,
    reinterpret_cast<CanType*>(0x400A4000) // CAN1
#endif
};

/* Module Configuration Register */

constexpr unsigned long MCR_MAXMB_SHIFT =    (0);         /* Bits 0-6: Number of the Last Message Buffer */
constexpr unsigned long MCR_MAXMB_MASK =     (0x7fU << MCR_MAXMB_SHIFT);
/* Bit 7:  Reserved */
constexpr unsigned long MCR_IDAM_SHIFT =      (8);        /* Bits 8-9: ID Acceptance Mode */
constexpr unsigned long MCR_IDAM_MASK =       (3U << MCR_IDAM_SHIFT);
constexpr unsigned long MCR_IDAM_FMTA(0U << MCR_IDAM_SHIFT);          /* Format A: One full ID  */
constexpr unsigned long CAN_MCR_IDAM_FMTB(1U << MCR_IDAM_SHIFT);      /* Format B: Two full (or partial) IDs */
constexpr unsigned long MCR_IDAM_FMTC(2U << MCR_IDAM_SHIFT);          /* Format C: Four partial IDs */
constexpr unsigned long MCR_IDAM_FMTD(3U << MCR_IDAM_SHIFT);          /* Format D: All frames rejected */
/* Bits 10-11: Reserved */
constexpr unsigned long MCR_AEN =             (1U << 12); /* Bit 12: Abort Enable */
constexpr unsigned long MCR_LPRIOEN =         (1U << 13); /* Bit 13: Local Priority Enable */
                                                          /* Bits 14-15: Reserved */
constexpr unsigned long MCR_IRMQ =            (1U << 16); /* Bit 16: Individual Rx Masking and Queue Enable */
constexpr unsigned long MCR_SRXDIS =          (1U << 17); /* Bit 17: Self Reception Disable */
                                                          /* Bit 18: Reserved */
constexpr unsigned long MCR_WAKSRC =          (1U << 19); /* Bit 19: Wake up Source */
constexpr unsigned long MCR_LPMACK =          (1U << 20); /* Bit 20: Low Power Mode Acknowledge */
constexpr unsigned long MCR_WRNEN =           (1U << 21); /* Bit 21: Warning Interrupt Enable */
constexpr unsigned long MCR_SLFWAK =          (1U << 22); /* Bit 22: Self Wake Up */
constexpr unsigned long MCR_SUPV =            (1U << 23); /* Bit 23: Supervisor Mode */
constexpr unsigned long MCR_FRZACK =          (1U << 24); /* Bit 24: Freeze Mode Acknowledge */
constexpr unsigned long MCR_SOFTRST =         (1U << 25); /* Bit 25: Soft Reset */
constexpr unsigned long MCR_WAKMSK =          (1U << 26); /* Bit 26: Wake Up Interrupt Mask */
constexpr unsigned long MCR_NOTRDY =          (1U << 27); /* Bit 27: FlexCAN Not Ready */
constexpr unsigned long MCR_HALT =            (1U << 28); /* Bit 28: Halt FlexCAN */
constexpr unsigned long MCR_RFEN =            (1U << 29); /* Bit 29: Rx FIFO Enable */
constexpr unsigned long MCR_FRZ =             (1U << 30); /* Bit 30: Freeze Enable */
constexpr unsigned long MCR_MDIS =            (1U << 31); /* Bit 31: Module Disable */

/* Control 1 Register */

constexpr unsigned long CTRL1_ROPSEG_SHIFT =  (0);       /* Bits 0-2: Propagation Segment */
constexpr unsigned long CTRL1_ROPSEG_MASK =   (7U << CTRL1_ROPSEG_SHIFT);
constexpr unsigned long CTRL1_LOM =           (1U << 3);  /* Bit 3:  Listen-Only Mode */
constexpr unsigned long CTRL1_LBUF =          (1U << 4);  /* Bit 4:  Lowest Buffer Transmitted First */
constexpr unsigned long CTRL1_TSYN =          (1U << 5);  /* Bit 5:  Timer Sync */
constexpr unsigned long CTRL1_BOFFREC =       (1U << 6);  /* Bit 6:  Bus Off Recovery */
constexpr unsigned long CTRL1_SMP =           (1U << 7);  /* Bit 7:  CAN Bit Sampling */
                                                          /* Bits 8-9: Reserved */
constexpr unsigned long CTRL1_RWRNMSK =       (1U << 10); /* Bit 10: Rx Warning Interrupt Mask */
constexpr unsigned long CTRL1_TWRNMSK =       (1U << 11); /* Bit 11: Tx Warning Interrupt Mask */
constexpr unsigned long CTRL1_LPB =           (1U << 12); /* Bit 12: Loop Back Mode */
constexpr unsigned long CTRL1_CLKSRC =        (1U << 13); /* Bit 13: CAN Engine Clock Source */
constexpr unsigned long CTRL1_ERRMSK =        (1U << 14); /* Bit 14: Error Mask */
constexpr unsigned long CTRL1_BOFFMSK =       (1U << 15); /* Bit 15: Bus Off Mask */
constexpr unsigned long CTRL1_PSEG2_SHIFT =   (16);       /* Bits 16-18: Phase Segment 2 */
constexpr unsigned long CTRL1_PSEG2_MASK =    (7U << CTRL1_PSEG2_SHIFT);
constexpr unsigned long CTRL1_PSEG1_SHIFT =   (19);       /* Bits 19-21: Phase Segment 1 */
constexpr unsigned long CTRL1_PSEG1_MASK =    (7U << CTRL1_PSEG1_SHIFT);
constexpr unsigned long CTRL1_RJW_SHIFT =     (22);       /* Bits 22-23: Resync Jump Width */
constexpr unsigned long CTRL1_RJW_MASK =      (3U << CTRL1_RJW_SHIFT);
constexpr unsigned long CTRL1_PRESDIV_SHIFT = (24);       /* Bits 24-31: Prescaler Division Factor */
constexpr unsigned long CTRL1_PRESDIV_MASK =  (0xff << CTRL1_PRESDIV_SHIFT);

/* Free Running Timer */

constexpr unsigned long TIMER_SHIFT =           (0U);     /* Bits 0-15: Timer value */
constexpr unsigned long TIMER_MASK =            (0xffffU << TIMER_SHIFT);
/* Bits 16-31: Reserved */
/* Rx Mailboxes Global Mask Register (32 Rx Mailboxes Global Mask Bits) */

constexpr unsigned long RXMGMASK0 =             (1U << 0); /* Bit 0: Rx Mailbox 0 Global Mask Bit */
constexpr unsigned long RXMGMASK1 =             (1U << 1); /* Bit 1: Rx Mailbox 1 Global Mask Bit */
constexpr unsigned long RXMGMASK2 =             (1U << 2); /* Bit 2: Rx Mailbox 2 Global Mask Bit */
constexpr unsigned long RXMGMASK3 =             (1U << 3); /* Bit 3: Rx Mailbox 3 Global Mask Bit */
constexpr unsigned long RXMGMASK4 =             (1U << 4); /* Bit 4: Rx Mailbox 4 Global Mask Bit */
constexpr unsigned long RXMGMASK5 =             (1U << 5); /* Bit 5: Rx Mailbox 5 Global Mask Bit */
constexpr unsigned long RXMGMASK6 =             (1U << 6); /* Bit 6: Rx Mailbox 6 Global Mask Bit */
constexpr unsigned long RXMGMASK7 =             (1U << 7); /* Bit 7: Rx Mailbox 7 Global Mask Bit */
constexpr unsigned long RXMGMASK8 =             (1U << 8); /* Bit 8: Rx Mailbox 8 Global Mask Bit */
constexpr unsigned long RXMGMASK9 =             (1U << 9); /* Bit 9: Rx Mailbox 9 Global Mask Bit */
constexpr unsigned long RXMGMASK10 =            (1U << 10); /* Bit 10: Rx Mailbox 10 Global Mask Bit */
constexpr unsigned long RXMGMASK11 =            (1U << 11); /* Bit 11: Rx Mailbox 11 Global Mask Bit */
constexpr unsigned long RXMGMASK12 =            (1U << 12); /* Bit 12: Rx Mailbox 12 Global Mask Bit */
constexpr unsigned long RXMGMASK13 =            (1U << 13); /* Bit 13: Rx Mailbox 13 Global Mask Bit */
constexpr unsigned long RXMGMASK14 =            (1U << 14); /* Bit 14: Rx Mailbox 14 Global Mask Bit */
constexpr unsigned long RXMGMASK15 =            (1U << 15); /* Bit 15: Rx Mailbox 15 Global Mask Bit */
constexpr unsigned long RXMGMASK16 =            (1U << 16); /* Bit 16: Rx Mailbox 16 Global Mask Bit */
constexpr unsigned long RXMGMASK17 =            (1U << 17); /* Bit 17: Rx Mailbox 17 Global Mask Bit */
constexpr unsigned long RXMGMASK18 =            (1U << 18); /* Bit 18: Rx Mailbox 18 Global Mask Bit */
constexpr unsigned long RXMGMASK19 =            (1U << 19); /* Bit 19: Rx Mailbox 19 Global Mask Bit */
constexpr unsigned long RXMGMASK20 =            (1U << 20); /* Bit 20: Rx Mailbox 20 Global Mask Bit */
constexpr unsigned long RXMGMASK21 =            (1U << 21); /* Bit 21: Rx Mailbox 21 Global Mask Bit */
constexpr unsigned long RXMGMASK22 =            (1U << 22); /* Bit 22: Rx Mailbox 22 Global Mask Bit */
constexpr unsigned long RXMGMASK23 =            (1U << 23); /* Bit 23: Rx Mailbox 23 Global Mask Bit */
constexpr unsigned long RXMGMASK24 =            (1U << 24); /* Bit 24: Rx Mailbox 24 Global Mask Bit */
constexpr unsigned long RXMGMASK25 =            (1U << 25); /* Bit 25: Rx Mailbox 25 Global Mask Bit */
constexpr unsigned long RXMGMASK26 =            (1U << 26); /* Bit 26: Rx Mailbox 26 Global Mask Bit */
constexpr unsigned long RXMGMASK27 =            (1U << 27); /* Bit 27: Rx Mailbox 27 Global Mask Bit */
constexpr unsigned long RXMGMASK28 =            (1U << 28); /* Bit 28: Rx Mailbox 28 Global Mask Bit */
constexpr unsigned long RXMGMASK29 =            (1U << 29); /* Bit 29: Rx Mailbox 29 Global Mask Bit */
constexpr unsigned long RXMGMASK30 =            (1U << 30); /* Bit 30: Rx Mailbox 30 Global Mask Bit */
constexpr unsigned long RXMGMASK31 =            (1U << 31); /* Bit 31: Rx Mailbox 31 Global Mask Bit */

/* Rx 14 Mask Register */

constexpr unsigned long RXM14MASK0 =             (1U << 0); /* Bit 0: Rx Buffer 14  Mask Bit 0 */
constexpr unsigned long RXM14MASK1 =             (1U << 1); /* Bit 1: Rx Buffer 14  Mask Bit 1 */
constexpr unsigned long RXM14MASK2 =             (1U << 2); /* Bit 2: Rx Buffer 14  Mask Bit 2 */
constexpr unsigned long RXM14MASK3 =             (1U << 3); /* Bit 3: Rx Buffer 14  Mask Bit 3 */
constexpr unsigned long RXM14MASK4 =             (1U << 4); /* Bit 4: Rx Buffer 14  Mask Bit 4 */
constexpr unsigned long RXM14MASK5 =             (1U << 5); /* Bit 5: Rx Buffer 14  Mask Bit 5 */
constexpr unsigned long RXM14MASK6 =             (1U << 6); /* Bit 6: Rx Buffer 14  Mask Bit 6 */
constexpr unsigned long RXM14MASK7 =             (1U << 7); /* Bit 7: Rx Buffer 14  Mask Bit 7 */
constexpr unsigned long RXM14MASK8 =             (1U << 8); /* Bit 8: Rx Buffer 14  Mask Bit 8 */
constexpr unsigned long RXM14MASK9 =             (1U << 9); /* Bit 9: Rx Buffer 14  Mask Bit 9 */
constexpr unsigned long RXM14MASK10 =            (1U << 10); /* Bit 10: Rx Buffer 14  Mask Bit 10 */
constexpr unsigned long RXM14MASK11 =            (1U << 11); /* Bit 11: Rx Buffer 14  Mask Bit 11 */
constexpr unsigned long RXM14MASK12 =            (1U << 12); /* Bit 12: Rx Buffer 14  Mask Bit 12 */
constexpr unsigned long RXM14MASK13 =            (1U << 13); /* Bit 13: Rx Buffer 14  Mask Bit 13 */
constexpr unsigned long RXM14MASK14 =            (1U << 14); /* Bit 14: Rx Buffer 14  Mask Bit 14 */
constexpr unsigned long RXM14MASK15 =            (1U << 15); /* Bit 15: Rx Buffer 14  Mask Bit 15 */
constexpr unsigned long RXM14MASK16 =            (1U << 16); /* Bit 16: Rx Buffer 14  Mask Bit 16 */
constexpr unsigned long RXM14MASK17 =            (1U << 17); /* Bit 17: Rx Buffer 14  Mask Bit 17 */
constexpr unsigned long RXM14MASK18 =            (1U << 18); /* Bit 18: Rx Buffer 14  Mask Bit 18 */
constexpr unsigned long RXM14MASK19 =            (1U << 19); /* Bit 19: Rx Buffer 14  Mask Bit 19 */
constexpr unsigned long RXM14MASK20 =            (1U << 20); /* Bit 20: Rx Buffer 14  Mask Bit 20 */
constexpr unsigned long RXM14MASK21 =            (1U << 21); /* Bit 21: Rx Buffer 14  Mask Bit 21 */
constexpr unsigned long RXM14MASK22 =            (1U << 22); /* Bit 22: Rx Buffer 14  Mask Bit 22 */
constexpr unsigned long RXM14MASK23 =            (1U << 23); /* Bit 23: Rx Buffer 14  Mask Bit 23 */
constexpr unsigned long RXM14MASK24 =            (1U << 24); /* Bit 24: Rx Buffer 14  Mask Bit 24 */
constexpr unsigned long RXM14MASK25 =            (1U << 25); /* Bit 25: Rx Buffer 14  Mask Bit 25 */
constexpr unsigned long RXM14MASK26 =            (1U << 26); /* Bit 26: Rx Buffer 14  Mask Bit 26 */
constexpr unsigned long RXM14MASK27 =            (1U << 27); /* Bit 27: Rx Buffer 14  Mask Bit 27 */
constexpr unsigned long RXM14MASK28 =            (1U << 28); /* Bit 28: Rx Buffer 14  Mask Bit 28 */
constexpr unsigned long RXM14MASK29 =            (1U << 29); /* Bit 29: Rx Buffer 14  Mask Bit 29 */
constexpr unsigned long RXM14MASK30 =            (1U << 30); /* Bit 30: Rx Buffer 14  Mask Bit 30 */
constexpr unsigned long RXM14MASK31 =            (1U << 31); /* Bit 31: Rx Buffer 14  Mask Bit 31 */

/* Rx 15 Mask Register */

constexpr unsigned long RXM15MASK0 =             (1U << 0); /* Bit 0: Rx Buffer 15  Mask Bit 0 */
constexpr unsigned long RXM15MASK1 =             (1U << 1); /* Bit 1: Rx Buffer 15  Mask Bit 1 */
constexpr unsigned long RXM15MASK2 =             (1U << 2); /* Bit 2: Rx Buffer 15  Mask Bit 2 */
constexpr unsigned long RXM15MASK3 =             (1U << 3); /* Bit 3: Rx Buffer 15  Mask Bit 3 */
constexpr unsigned long RXM15MASK4 =             (1U << 4); /* Bit 4: Rx Buffer 15  Mask Bit 4 */
constexpr unsigned long RXM15MASK5 =             (1U << 5); /* Bit 5: Rx Buffer 15  Mask Bit 5 */
constexpr unsigned long RXM15MASK6 =             (1U << 6); /* Bit 6: Rx Buffer 15  Mask Bit 6 */
constexpr unsigned long RXM15MASK7 =             (1U << 7); /* Bit 7: Rx Buffer 15  Mask Bit 7 */
constexpr unsigned long RXM15MASK8 =             (1U << 8); /* Bit 8: Rx Buffer 15  Mask Bit 8 */
constexpr unsigned long RXM15MASK9 =             (1U << 9); /* Bit 9: Rx Buffer 15  Mask Bit 9 */
constexpr unsigned long RXM15MASK10 =            (1U << 10); /* Bit 10: Rx Buffer 15  Mask Bit 10 */
constexpr unsigned long RXM15MASK11 =            (1U << 11); /* Bit 11: Rx Buffer 15  Mask Bit 11 */
constexpr unsigned long RXM15MASK12 =            (1U << 12); /* Bit 12: Rx Buffer 15  Mask Bit 12 */
constexpr unsigned long RXM15MASK13 =            (1U << 13); /* Bit 13: Rx Buffer 15  Mask Bit 13 */
constexpr unsigned long RXM15MASK14 =            (1U << 14); /* Bit 14: Rx Buffer 15  Mask Bit 14 */
constexpr unsigned long RXM15MASK15 =            (1U << 15); /* Bit 15: Rx Buffer 15  Mask Bit 15 */
constexpr unsigned long RXM15MASK16 =            (1U << 16); /* Bit 16: Rx Buffer 15  Mask Bit 16 */
constexpr unsigned long RXM15MASK17 =            (1U << 17); /* Bit 17: Rx Buffer 15  Mask Bit 17 */
constexpr unsigned long RXM15MASK18 =            (1U << 18); /* Bit 18: Rx Buffer 15  Mask Bit 18 */
constexpr unsigned long RXM15MASK19 =            (1U << 19); /* Bit 19: Rx Buffer 15  Mask Bit 19 */
constexpr unsigned long RXM15MASK20 =            (1U << 20); /* Bit 20: Rx Buffer 15  Mask Bit 20 */
constexpr unsigned long RXM15MASK21 =            (1U << 21); /* Bit 21: Rx Buffer 15  Mask Bit 21 */
constexpr unsigned long RXM15MASK22 =            (1U << 22); /* Bit 22: Rx Buffer 15  Mask Bit 22 */
constexpr unsigned long RXM15MASK23 =            (1U << 23); /* Bit 23: Rx Buffer 15  Mask Bit 23 */
constexpr unsigned long RXM15MASK24 =            (1U << 24); /* Bit 24: Rx Buffer 15  Mask Bit 24 */
constexpr unsigned long RXM15MASK25 =            (1U << 25); /* Bit 25: Rx Buffer 15  Mask Bit 25 */
constexpr unsigned long RXM15MASK26 =            (1U << 26); /* Bit 26: Rx Buffer 15  Mask Bit 26 */
constexpr unsigned long RXM15MASK27 =            (1U << 27); /* Bit 27: Rx Buffer 15  Mask Bit 27 */
constexpr unsigned long RXM15MASK28 =            (1U << 28); /* Bit 28: Rx Buffer 15  Mask Bit 28 */
constexpr unsigned long RXM15MASK29 =            (1U << 29); /* Bit 29: Rx Buffer 15  Mask Bit 29 */
constexpr unsigned long RXM15MASK30 =            (1U << 30); /* Bit 30: Rx Buffer 15  Mask Bit 30 */
constexpr unsigned long RXM15MASK31 =            (1U << 31); /* Bit 31: Rx Buffer 15  Mask Bit 31 */

/* Error Counter */

constexpr unsigned long ECR_TXERRCNT_SHIFT =     (0U); /* Bits 0-7: Transmit Error Counter */
constexpr unsigned long ECR_TXERRCNT_MASK =      (0xff << ECR_TXERRCNT_SHIFT);
constexpr unsigned long ECR_RXERRCNT_SHIFT =     (8); /* Bits 8-15: Receive Error Counter */
constexpr unsigned long ECR_RXERRCNT_MASK =      (0xff << ECR_RXERRCNT_SHIFT);
/* Bits 16-31: Reserved */

/* Error and Status 1 Register */

constexpr unsigned long ESR1_WAKINT =            (1U << 0); /* Bit 0:  Wake-Up Interrupt */
constexpr unsigned long ESR1_ERRINT =            (1U << 1); /* Bit 1:  Error Interrupt */
constexpr unsigned long ESR1_BOFFINT =           (1U << 2); /* Bit 2:  'Bus Off' Interrupt */
constexpr unsigned long ESR1_RX =                (1U << 3); /* Bit 3:  FlexCAN in Reception */
constexpr unsigned long ESR1_FLTCONF_SHIFT =     (4U);      /* Bits 4-5: Fault Confinement State */
constexpr unsigned long ESR1_FLTCONF_MASK =      (3U << ESR1_FLTCONF_SHIFT);
constexpr unsigned long ESR1_FLTCONF_ACTV =      (0U << ESR1_FLTCONF_SHIFT); /* Error Active */
constexpr unsigned long ESR1_FLTCONF_PASV =      (1U << ESR1_FLTCONF_SHIFT); /* Error Passive */
constexpr unsigned long ESR1_FLTCONF_OFF =       (2U << ESR1_FLTCONF_SHIFT); /* Bus Off */
constexpr unsigned long ESR1_TX =                (1U << 6); /* Bit 6:  FlexCAN in Transmission */
constexpr unsigned long ESR1_IDLE =              (1U << 7); /* Bit 7:  CAN bus is in IDLE state */
constexpr unsigned long ESR1_RXWRN =             (1U << 8); /* Bit 8:  Rx Error Warning */
constexpr unsigned long ESR1_TXWRN =             (1U << 9); /* Bit 9:  TX Error Warning */
constexpr unsigned long ESR1_STFERR =            (1U << 10); /* Bit 10: Stuffing Error */
constexpr unsigned long ESR1_FRMERR =            (1U << 11); /* Bit 11: Form Error */
constexpr unsigned long ESR1_CRCERR =            (1U << 12); /* Bit 12: Cyclic Redundancy Check Error */
constexpr unsigned long ESR1_ACKERR =            (1U << 13); /* Bit 13: Acknowledge Error */
constexpr unsigned long ESR1_BIT0ERR =           (1U << 14); /* Bit 14: Bit0 Error */
constexpr unsigned long ESR1_BIT1ERR =           (1U << 15); /* Bit 15: Bit1 Error */
constexpr unsigned long ESR1_RWRNINT =           (1U << 16); /* Bit 16: Rx Warning Interrupt Flag */
constexpr unsigned long ESR1_TWRNINT =           (1U << 17); /* Bit 17: Tx Warning Interrupt Flag */
constexpr unsigned long ESR1_SYNCH =             (1U << 18); /* Bit 18: CAN Synchronization Status */
                                                             /* Bits 19-31: Reserved */
/* Interrupt Masks 2 Register */

constexpr unsigned long CAN_IMASK2_0 =            (1U << 0); /* Bit 0: Buffer MB0 Mask */
constexpr unsigned long CAN_IMASK2_1 =            (1U << 1); /* Bit 1: Buffer MB1 Mask */
constexpr unsigned long CAN_IMASK2_2 =            (1U << 2); /* Bit 2: Buffer MB2 Mask */
constexpr unsigned long CAN_IMASK2_3 =            (1U << 3); /* Bit 3: Buffer MB3 Mask */
constexpr unsigned long CAN_IMASK2_4 =            (1U << 4); /* Bit 4: Buffer MB4 Mask */
constexpr unsigned long CAN_IMASK2_5 =            (1U << 5); /* Bit 5: Buffer MB5 Mask */
constexpr unsigned long CAN_IMASK2_6 =            (1U << 6); /* Bit 6: Buffer MB6 Mask */
constexpr unsigned long CAN_IMASK2_7 =            (1U << 7); /* Bit 7: Buffer MB7 Mask */
constexpr unsigned long CAN_IMASK2_8 =            (1U << 8); /* Bit 8: Buffer MB8 Mask */
constexpr unsigned long CAN_IMASK2_9 =            (1U << 9); /* Bit 9: Buffer MB9 Mask */
constexpr unsigned long CAN_IMASK2_10 =            (1U << 10); /* Bit 10: Buffer MB10 Mask */
constexpr unsigned long CAN_IMASK2_11 =            (1U << 11); /* Bit 11: Buffer MB11 Mask */
constexpr unsigned long CAN_IMASK2_12 =            (1U << 12); /* Bit 12: Buffer MB12 Mask */
constexpr unsigned long CAN_IMASK2_13 =            (1U << 13); /* Bit 13: Buffer MB13 Mask */
constexpr unsigned long CAN_IMASK2_14 =            (1U << 14); /* Bit 14: Buffer MB14 Mask */
constexpr unsigned long CAN_IMASK2_15 =            (1U << 15); /* Bit 15: Buffer MB15 Mask */
constexpr unsigned long CAN_IMASK2_16 =            (1U << 16); /* Bit 16: Buffer MB16 Mask */
constexpr unsigned long CAN_IMASK2_17 =            (1U << 17); /* Bit 17: Buffer MB17 Mask */
constexpr unsigned long CAN_IMASK2_18 =            (1U << 18); /* Bit 18: Buffer MB18 Mask */
constexpr unsigned long CAN_IMASK2_19 =            (1U << 19); /* Bit 19: Buffer MB19 Mask */
constexpr unsigned long CAN_IMASK2_20 =            (1U << 20); /* Bit 20: Buffer MB20 Mask */
constexpr unsigned long CAN_IMASK2_21 =            (1U << 21); /* Bit 21: Buffer MB21 Mask */
constexpr unsigned long CAN_IMASK2_22 =            (1U << 22); /* Bit 22: Buffer MB22 Mask */
constexpr unsigned long CAN_IMASK2_23 =            (1U << 23); /* Bit 23: Buffer MB23 Mask */
constexpr unsigned long CAN_IMASK2_24 =            (1U << 24); /* Bit 24: Buffer MB24 Mask */
constexpr unsigned long CAN_IMASK2_25 =            (1U << 25); /* Bit 25: Buffer MB25 Mask */
constexpr unsigned long CAN_IMASK2_26 =            (1U << 26); /* Bit 26: Buffer MB26 Mask */
constexpr unsigned long CAN_IMASK2_27 =            (1U << 27); /* Bit 27: Buffer MB27 Mask */
constexpr unsigned long CAN_IMASK2_28 =            (1U << 28); /* Bit 28: Buffer MB28 Mask */
constexpr unsigned long CAN_IMASK2_29 =            (1U << 29); /* Bit 29: Buffer MB29 Mask */
constexpr unsigned long CAN_IMASK2_30 =            (1U << 30); /* Bit 30: Buffer MB30 Mask */
constexpr unsigned long CAN_IMASK2_31 =            (1U << 31); /* Bit 31: Buffer MB31 Mask */

/* Interrupt Masks 1 Register */

constexpr unsigned long CAN_IMASK1_0 =             (1U << 0); /* Bit 0: Buffer MB0 Mask */
constexpr unsigned long CAN_IMASK1_1 =             (1U << 1); /* Bit 1: Buffer MB1 Mask */
constexpr unsigned long CAN_IMASK1_2 =             (1U << 2); /* Bit 2: Buffer MB2 Mask */
constexpr unsigned long CAN_IMASK1_3 =             (1U << 3); /* Bit 3: Buffer MB3 Mask */
constexpr unsigned long CAN_IMASK1_4 =             (1U << 4); /* Bit 4: Buffer MB4 Mask */
constexpr unsigned long CAN_IMASK1_5 =             (1U << 5); /* Bit 5: Buffer MB5 Mask */
constexpr unsigned long CAN_IMASK1_6 =             (1U << 6); /* Bit 6: Buffer MB6 Mask */
constexpr unsigned long CAN_IMASK1_7 =             (1U << 7); /* Bit 7: Buffer MB7 Mask */
constexpr unsigned long CAN_IMASK1_8 =             (1U << 8); /* Bit 8: Buffer MB8 Mask */
constexpr unsigned long CAN_IMASK1_9 =             (1U << 9); /* Bit 9: Buffer MB9 Mask */
constexpr unsigned long CAN_IMASK1_10 =            (1U << 10); /* Bit 10: Buffer MB10 Mask */
constexpr unsigned long CAN_IMASK1_11 =            (1U << 11); /* Bit 11: Buffer MB11 Mask */
constexpr unsigned long CAN_IMASK1_12 =            (1U << 12); /* Bit 12: Buffer MB12 Mask */
constexpr unsigned long CAN_IMASK1_13 =            (1U << 13); /* Bit 13: Buffer MB13 Mask */
constexpr unsigned long CAN_IMASK1_14 =            (1U << 14); /* Bit 14: Buffer MB14 Mask */
constexpr unsigned long CAN_IMASK1_15 =            (1U << 15); /* Bit 15: Buffer MB15 Mask */
constexpr unsigned long CAN_IMASK1_16 =            (1U << 16); /* Bit 16: Buffer MB16 Mask */
constexpr unsigned long CAN_IMASK1_17 =            (1U << 17); /* Bit 17: Buffer MB17 Mask */
constexpr unsigned long CAN_IMASK1_18 =            (1U << 18); /* Bit 18: Buffer MB18 Mask */
constexpr unsigned long CAN_IMASK1_19 =            (1U << 19); /* Bit 19: Buffer MB19 Mask */
constexpr unsigned long CAN_IMASK1_20 =            (1U << 20); /* Bit 20: Buffer MB20 Mask */
constexpr unsigned long CAN_IMASK1_21 =            (1U << 21); /* Bit 21: Buffer MB21 Mask */
constexpr unsigned long CAN_IMASK1_22 =            (1U << 22); /* Bit 22: Buffer MB22 Mask */
constexpr unsigned long CAN_IMASK1_23 =            (1U << 23); /* Bit 23: Buffer MB23 Mask */
constexpr unsigned long CAN_IMASK1_24 =            (1U << 24); /* Bit 24: Buffer MB24 Mask */
constexpr unsigned long CAN_IMASK1_25 =            (1U << 25); /* Bit 25: Buffer MB25 Mask */
constexpr unsigned long CAN_IMASK1_26 =            (1U << 26); /* Bit 26: Buffer MB26 Mask */
constexpr unsigned long CAN_IMASK1_27 =            (1U << 27); /* Bit 27: Buffer MB27 Mask */
constexpr unsigned long CAN_IMASK1_28 =            (1U << 28); /* Bit 28: Buffer MB28 Mask */
constexpr unsigned long CAN_IMASK1_29 =            (1U << 29); /* Bit 29: Buffer MB29 Mask */
constexpr unsigned long CAN_IMASK1_30 =            (1U << 30); /* Bit 30: Buffer MB30 Mask */
constexpr unsigned long CAN_IMASK1_31 =            (1U << 31); /* Bit 31: Buffer MB31 Mask */

/* Interrupt Flags 2 Register */

constexpr unsigned long CAN_IFLAG2_0 =             (1U << 0); /* Bit 0: Buffer MB0 Interrupt */
constexpr unsigned long CAN_IFLAG2_1 =             (1U << 1); /* Bit 1: Buffer MB1 Interrupt */
constexpr unsigned long CAN_IFLAG2_2 =             (1U << 2); /* Bit 2: Buffer MB2 Interrupt */
constexpr unsigned long CAN_IFLAG2_3 =             (1U << 3); /* Bit 3: Buffer MB3 Interrupt */
constexpr unsigned long CAN_IFLAG2_4 =             (1U << 4); /* Bit 4: Buffer MB4 Interrupt */
constexpr unsigned long CAN_IFLAG2_5 =             (1U << 5); /* Bit 5: Buffer MB5 Interrupt */
constexpr unsigned long CAN_IFLAG2_6 =             (1U << 6); /* Bit 6: Buffer MB6 Interrupt */
constexpr unsigned long CAN_IFLAG2_7 =             (1U << 7); /* Bit 7: Buffer MB7 Interrupt */
constexpr unsigned long CAN_IFLAG2_8 =             (1U << 8); /* Bit 8: Buffer MB8 Interrupt */
constexpr unsigned long CAN_IFLAG2_9 =             (1U << 9); /* Bit 9: Buffer MB9 Interrupt */
constexpr unsigned long CAN_IFLAG2_10 =            (1U << 10); /* Bit 10: Buffer MB10 Interrupt */
constexpr unsigned long CAN_IFLAG2_11 =            (1U << 11); /* Bit 11: Buffer MB11 Interrupt */
constexpr unsigned long CAN_IFLAG2_12 =            (1U << 12); /* Bit 12: Buffer MB12 Interrupt */
constexpr unsigned long CAN_IFLAG2_13 =            (1U << 13); /* Bit 13: Buffer MB13 Interrupt */
constexpr unsigned long CAN_IFLAG2_14 =            (1U << 14); /* Bit 14: Buffer MB14 Interrupt */
constexpr unsigned long CAN_IFLAG2_15 =            (1U << 15); /* Bit 15: Buffer MB15 Interrupt */
constexpr unsigned long CAN_IFLAG2_16 =            (1U << 16); /* Bit 16: Buffer MB16 Interrupt */
constexpr unsigned long CAN_IFLAG2_17 =            (1U << 17); /* Bit 17: Buffer MB17 Interrupt */
constexpr unsigned long CAN_IFLAG2_18 =            (1U << 18); /* Bit 18: Buffer MB18 Interrupt */
constexpr unsigned long CAN_IFLAG2_19 =            (1U << 19); /* Bit 19: Buffer MB19 Interrupt */
constexpr unsigned long CAN_IFLAG2_20 =            (1U << 20); /* Bit 20: Buffer MB20 Interrupt */
constexpr unsigned long CAN_IFLAG2_21 =            (1U << 21); /* Bit 21: Buffer MB21 Interrupt */
constexpr unsigned long CAN_IFLAG2_22 =            (1U << 22); /* Bit 22: Buffer MB22 Interrupt */
constexpr unsigned long CAN_IFLAG2_23 =            (1U << 23); /* Bit 23: Buffer MB23 Interrupt */
constexpr unsigned long CAN_IFLAG2_24 =            (1U << 24); /* Bit 24: Buffer MB24 Interrupt */
constexpr unsigned long CAN_IFLAG2_25 =            (1U << 25); /* Bit 25: Buffer MB25 Interrupt */
constexpr unsigned long CAN_IFLAG2_26 =            (1U << 26); /* Bit 26: Buffer MB26 Interrupt */
constexpr unsigned long CAN_IFLAG2_27 =            (1U << 27); /* Bit 27: Buffer MB27 Interrupt */
constexpr unsigned long CAN_IFLAG2_28 =            (1U << 28); /* Bit 28: Buffer MB28 Interrupt */
constexpr unsigned long CAN_IFLAG2_29 =            (1U << 29); /* Bit 29: Buffer MB29 Interrupt */
constexpr unsigned long CAN_IFLAG2_30 =            (1U << 30); /* Bit 30: Buffer MB30 Interrupt */
constexpr unsigned long CAN_IFLAG2_31 =            (1U << 31); /* Bit 31: Buffer MB31 Interrupt */

/* Interrupt Flags 1 Register */

constexpr unsigned long CAN_IFLAG1_0 =             (1U << 0); /* Bit 0: Buffer MB0 Interrupt */
constexpr unsigned long CAN_IFLAG1_1 =             (1U << 1); /* Bit 1: Buffer MB1 Interrupt */
constexpr unsigned long CAN_IFLAG1_2 =             (1U << 2); /* Bit 2: Buffer MB2 Interrupt */
constexpr unsigned long CAN_IFLAG1_3 =             (1U << 3); /* Bit 3: Buffer MB3 Interrupt */
constexpr unsigned long CAN_IFLAG1_4 =             (1U << 4); /* Bit 4: Buffer MB4 Interrupt */
constexpr unsigned long CAN_IFLAG1_5 =             (1U << 5); /* Bit 5: Buffer MB5 Interrupt */
constexpr unsigned long CAN_FIFO_NE =              CAN_IFLAG1_5; /* Bit 5: Fifo almost Not empty Interrupt */
constexpr unsigned long CAN_IFLAG1_6 =             (1U << 6); /* Bit 6: Buffer MB6 Interrupt */
constexpr unsigned long CAN_FIFO_WARN =            CAN_IFLAG1_6; /* Bit 6: Fifo almost full Interrupt */
constexpr unsigned long CAN_IFLAG1_7 =             (1U << 7); /* Bit 7: Buffer MB7 Interrupt */
constexpr unsigned long CAN_FIFO_OV =              CAN_IFLAG1_7; /* Bit 7: Fifo Overflowed Interrupt */
constexpr unsigned long CAN_IFLAG1_8 =             (1U << 8); /* Bit 8: Buffer MB8 Interrupt */
constexpr unsigned long CAN_IFLAG1_9 =             (1U << 9); /* Bit 9: Buffer MB9 Interrupt */
constexpr unsigned long CAN_IFLAG1_10 =            (1U << 10); /* Bit 10: Buffer MB10 Interrupt */
constexpr unsigned long CAN_IFLAG1_11 =            (1U << 11); /* Bit 11: Buffer MB11 Interrupt */
constexpr unsigned long CAN_IFLAG1_12 =            (1U << 12); /* Bit 12: Buffer MB12 Interrupt */
constexpr unsigned long CAN_IFLAG1_13 =            (1U << 13); /* Bit 13: Buffer MB13 Interrupt */
constexpr unsigned long CAN_IFLAG1_14 =            (1U << 14); /* Bit 14: Buffer MB14 Interrupt */
constexpr unsigned long CAN_IFLAG1_15 =            (1U << 15); /* Bit 15: Buffer MB15 Interrupt */
constexpr unsigned long CAN_IFLAG1_16 =            (1U << 16); /* Bit 16: Buffer MB16 Interrupt */
constexpr unsigned long CAN_IFLAG1_17 =            (1U << 17); /* Bit 17: Buffer MB17 Interrupt */
constexpr unsigned long CAN_IFLAG1_18 =            (1U << 18); /* Bit 18: Buffer MB18 Interrupt */
constexpr unsigned long CAN_IFLAG1_19 =            (1U << 19); /* Bit 19: Buffer MB19 Interrupt */
constexpr unsigned long CAN_IFLAG1_20 =            (1U << 20); /* Bit 20: Buffer MB20 Interrupt */
constexpr unsigned long CAN_IFLAG1_21 =            (1U << 21); /* Bit 21: Buffer MB21 Interrupt */
constexpr unsigned long CAN_IFLAG1_22 =            (1U << 22); /* Bit 22: Buffer MB22 Interrupt */
constexpr unsigned long CAN_IFLAG1_23 =            (1U << 23); /* Bit 23: Buffer MB23 Interrupt */
constexpr unsigned long CAN_IFLAG1_24 =            (1U << 24); /* Bit 24: Buffer MB24 Interrupt */
constexpr unsigned long CAN_IFLAG1_25 =            (1U << 25); /* Bit 25: Buffer MB25 Interrupt */
constexpr unsigned long CAN_IFLAG1_26 =            (1U << 26); /* Bit 26: Buffer MB26 Interrupt */
constexpr unsigned long CAN_IFLAG1_27 =            (1U << 27); /* Bit 27: Buffer MB27 Interrupt */
constexpr unsigned long CAN_IFLAG1_28 =            (1U << 28); /* Bit 28: Buffer MB28 Interrupt */
constexpr unsigned long CAN_IFLAG1_29 =            (1U << 29); /* Bit 29: Buffer MB29 Interrupt */
constexpr unsigned long CAN_IFLAG1_30 =            (1U << 30); /* Bit 30: Buffer MB30 Interrupt */
constexpr unsigned long CAN_IFLAG1_31 =            (1U << 31); /* Bit 31: Buffer MB31 Interrupt */

/* Control 2 Register */
/* Bits 0-15: Reserved */
constexpr unsigned long CTRL2_EACEN =              (1U << 16); /* Bit 16:  Entire Frame Arbitration Field Comparison
                                                                  Enable (Rx) */
constexpr unsigned long CTRL2_RRS =                (1U << 17); /* Bit 17:  Remote Request Storing */
constexpr unsigned long CTRL2_MRP =                (1U << 18); /* Bit 18:  Mailboxes Reception Priority */
constexpr unsigned long CTRL2_TASD_SHIFT =         (19);       /* Bits 19-23: Tx Arbitration Start Delay */
constexpr unsigned long CTRL2_TASD_MASK =          (31U << CTRL2_TASD_SHIFT);
constexpr unsigned long CTRL2_RFFN_SHIFT =         (24);       /* Bits 24-27: Number of Rx FIFO Filters */
constexpr unsigned long CTRL2_RFFN_MASK(15U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_8MB(0U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_16MB(1U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_24MB(2U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_32MB(3U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_40MB(4U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_48MB(5U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_56MB(6U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_64MB(7U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_72MB(8U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_80MB(9U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_88MB(10U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_96MB(11U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_104MB(12U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_112MB(13U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_120MB(14U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_RFFN_128MB(15U << CTRL2_RFFN_SHIFT);
constexpr unsigned long CTRL2_WRMFRZ =             (1U << 28U); /* Bit 28: Write-Access to Memory in Freeze mode */
                                                                /* Bits 29-31: Reserved */

/* Error and Status 2 Register */
/* Bits 0-12: Reserved */
constexpr unsigned long ESR2_IMB =                 (1U << 13);  /* Bit 13: Inactive Mailbox */
constexpr unsigned long ESR2_VPS =                 (1U << 14);  /* Bit 14: Valid Priority Status */
                                                                /* Bit 15: Reserved */
constexpr unsigned long ESR2_LPTM_SHIFT =          (16);        /* Bits 16-22: Lowest Priority Tx Mailbox */
constexpr unsigned long ESR2_LPTM_MASK =           (0x7fU << ESR2_LPTM_SHIFT);
/* Bits 23-31: Reserved */
/* CRC Register */

constexpr unsigned long CRCR_TXCRC_SHIFT =         (0U); /* Bits 0-14: CRC Transmitted */
constexpr unsigned long CRCR_TXCRC_MASK =          (0x7fffU << CRCR_TXCRC_SHIFT); /* Rx FIFO Global Mask Register (32 Rx
                                                                                     FIFO Global Mask Bits) */
/* Bits 23-31: Reserved */
constexpr unsigned long CRCR_MBCRC_SHIFT =         (16);         /* Bits 16-22: CRC Mailbox */
constexpr unsigned long CRCR_MBCRC_MASK =          (0x7fU << CRCR_MBCRC_SHIFT);
/* Bit 15: Reserved */

/* Rx FIFO Information Register */
/* Bits 9-31: Reserved */
constexpr unsigned long RXFIR_IDHIT_SHIFT =         (0);         /* Bits 0-8: Identifier Acceptance Filter Hit Indicator
                                                                  */
constexpr unsigned long RXFIR_IDHIT_MASK =          (0x1ffU << RXFIR_IDHIT_SHIFT);

/* Rn Individual Mask Registers */

constexpr unsigned long RXIMR0 =             (1U << 0); /* Bit 0: Individual Mask Bits */
constexpr unsigned long RXIMR1 =             (1U << 1); /* Bit 1: Individual Mask Bits */
constexpr unsigned long RXIMR2 =             (1U << 2); /* Bit 2: Individual Mask Bits */
constexpr unsigned long RXIMR3 =             (1U << 3); /* Bit 3: Individual Mask Bits */
constexpr unsigned long RXIMR4 =             (1U << 4); /* Bit 4: Individual Mask Bits */
constexpr unsigned long RXIMR5 =             (1U << 5); /* Bit 5: Individual Mask Bits */
constexpr unsigned long RXIMR6 =             (1U << 6); /* Bit 6: Individual Mask Bits */
constexpr unsigned long RXIMR7 =             (1U << 7); /* Bit 7: Individual Mask Bits */
constexpr unsigned long RXIMR8 =             (1U << 8); /* Bit 8: Individual Mask Bits */
constexpr unsigned long RXIMR9 =             (1U << 9); /* Bit 9: Individual Mask Bits */
constexpr unsigned long RXIMR10 =            (1U << 10); /* Bit 10: Individual Mask Bits */
constexpr unsigned long RXIMR11 =            (1U << 11); /* Bit 11: Individual Mask Bits */
constexpr unsigned long RXIMR12 =            (1U << 12); /* Bit 12: Individual Mask Bits */
constexpr unsigned long RXIMR13 =            (1U << 13); /* Bit 13: Individual Mask Bits */
constexpr unsigned long RXIMR14 =            (1U << 14); /* Bit 14: Individual Mask Bits */
constexpr unsigned long RXIMR15 =            (1U << 15); /* Bit 15: Individual Mask Bits */
constexpr unsigned long RXIMR16 =            (1U << 16); /* Bit 16: Individual Mask Bits */
constexpr unsigned long RXIMR17 =            (1U << 17); /* Bit 17: Individual Mask Bits */
constexpr unsigned long RXIMR18 =            (1U << 18); /* Bit 18: Individual Mask Bits */
constexpr unsigned long RXIMR19 =            (1U << 19); /* Bit 19: Individual Mask Bits */
constexpr unsigned long RXIMR20 =            (1U << 20); /* Bit 20: Individual Mask Bits */
constexpr unsigned long RXIMR21 =            (1U << 21); /* Bit 21: Individual Mask Bits */
constexpr unsigned long RXIMR22 =            (1U << 22); /* Bit 22: Individual Mask Bits */
constexpr unsigned long RXIMR23 =            (1U << 23); /* Bit 23: Individual Mask Bits */
constexpr unsigned long RXIMR24 =            (1U << 24); /* Bit 24: Individual Mask Bits */
constexpr unsigned long RXIMR25 =            (1U << 25); /* Bit 25: Individual Mask Bits */
constexpr unsigned long RXIMR26 =            (1U << 26); /* Bit 26: Individual Mask Bits */
constexpr unsigned long RXIMR27 =            (1U << 27); /* Bit 27: Individual Mask Bits */
constexpr unsigned long RXIMR28 =            (1U << 28); /* Bit 28: Individual Mask Bits */
constexpr unsigned long RXIMR29 =            (1U << 29); /* Bit 29: Individual Mask Bits */
constexpr unsigned long RXIMR30 =            (1U << 30); /* Bit 30: Individual Mask Bits */
constexpr unsigned long RXIMR31 =            (1U << 31); /* Bit 31: Individual Mask Bits */
}
}

#if UAVCAN_CPP_VERSION < UAVCAN_CPP11
# undef constexpr
#endif