AN2341 datasheet(23/26 Pages) STMICROELECTRONICS

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AN2341

Message object register definition

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#define CAN_ND1

0x0048 // 0x0090 New Data 1 Register

#define CAN_ND2

0x0049 // 0x0092 New Data 2 Register

#define CAN_IP1

0x0050 // 0x00A0 Interrupt Pending 1 Register

#define CAN_IP2

0x0051 // 0x00A0 Interrupt Pending 1 Register

#define CAN_MV1

0x0058 // 0x00B0 Message Valid 1 Register

#define CAN_MV2

0x0059 // 0x00B2 Message Valid 2 Register

// Control Register Bits

#define INIT

0x0001 // Initialization Enable

#define IE

0x0002 // Interrupt Enable

#define SIE

0x0004 // Status Interrupt Enable

#define EIE

0x0008 // Error Interrupt Enable

#define DAR

0x0020 // Disable Auto Retransmission

#define CCE

0x0040 // Configuration Change Enable

#define TST

0x0080 // Test Mode

// Status Register Bits

#define TXOK

0x0008 // Message Transmitted OK

#define RXOK

0x0010 // Message Received OK

#define EPASS

0x0020 // Error Passive

#define EWRN

0x0040 // Error Warning

#define BOFF

0x0080 // Buss Off

// Interrupt Register Bits

#define RP

0x8000 // Receive Error Passive

// Command Register Bits

#define IF_BUSY

0x8000

// Command Mask Register Bits

#define IF_DATA_B

0x0001

#define IF_DATA_A

0x0002

#define IF_TXR_ND

0x0004

#define IF_CLR_IP

0x0008

#define IF_CNTRL

0x0010

#define IF_ARB

0x0020

#define IF_MASK

0x0040

#define IF_WRRD

0x0080

// Mask Register Bits

#define IF_MXTD

0x8000

#define IF_MDIR

0x4000

// Arbitration Register Bits

#define IF_MSGVAL

0x8000

#define IF_XTD

0x4000

#define IF_DIR

0x2000

// Message Control Register Bits

#define IF_NEWDAT

0x8000

#define IF_MSGLST

0x4000

#define IF_INTPND

0x2000

#define IF_UMASK

0x1000

#define IF_TXIE

0x0800

#define IF_RXIE

0x0400

#define IF_RMTEN

0x0200

AN2341 数据表(PDF) 23 Page - STMicroelectronics

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