TxBuff_ID_Msg_n (CANFD) Register

Versal Adaptive SoC Register Reference (AM012)

Document ID
AM012
Release Date
2023-08-29
Revision
1.3

TxBuff_ID_Msg_n (CANFD) Register Description

Register NameTxBuff_ID_Msg_n
Relative Address0x0000000100
Absolute Address 0x00FF060100 (CANFD0)
0x00FF070100 (CANFD1)
Width32
TyperwNormal read/write
Reset Value0x00000000
Description32 ID regs for TxBuffer msgs 0 to 31 at 0x0100, 0x0148, etc (0x48 step)

There are 32 Tx message Identifcation registers. The first message identification register is at offset addresss 0x0100. Second identification register is at 0x0148. The address increment between message sets is 0x048. Software Driver name: TB_ID Original Bit Field Engineering Name: RXFP

TxBuff_ID_Msg_n (CANFD) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
ID31:21rwNormal read/write0Standard Message ID. The identifier portion for a standard frame is 11 bits.
These bits indicate the standard frame ID.
Note: This field is valid for both CAN and CAN FD standard and extended frames.
SRR_RTR_RRS20rwNormal read/write0Substitute Remote Transmission Request
For Extended CAN frames and Extended CAN FD frame this bit is transmitted at [SRR] position of the respective frame and must be set as 1.
For Standard CAN FD frame this bit is transmitted at [RRS] position of the frame and must be set as 0.
This bit differentiates between standard CAN data frames and standard CAN remote frames as the following:
0: standard data CAN frame
1: standard remote CAN frame
Note: There are no CAN FD remote frames.
IDE19rwNormal read/write0Identifier Extension
This bit differentiates between frames using the Standard Identifier and those using the Extended Identifier.
Valid for both CAN and CAN FD Standard and Extended Frames.
1 = indicates the use of an Extended Message Identifier
0 = indicates the use of a Standard Message Identifier
ID_EXT18:1rwNormal read/write0Extended Message ID.
This field indicates the Extended Identifier.
Valid only for Extended CAN and CAN FD Frames.
For Standard CAN and CAN FD Frames, writes to this field should
be 0.
RTR_RRS 0rwNormal read/write0Remote Transmission Request.
This bit differentiates between CAN extended data frames and
CAN extended remote frames.
1 = indicates the message frame is a CAN Remote Frame
0 = indicates the message frame is a CAN Data Frame
For Extended CAN FD frame this bit is transmitted at RRS position of the frame and must be set as 0.
For Standard CAN and CAN FD Frames, writes to this bit should be 0.
Note: There are no CAN FD remote frames.