If3 Mask Register (Can If3Msk); If3 Arbitration Register (Can If3Arb); If3 Mask Register (Can If3Msk) [Offset = 0X144]; If3 Arbitration Register (Can If3Arb) [Offset = 0X148] - Texas Instruments Concerto F28M35 Series Technical Reference Manual

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Table 23-22. IF3 Observation Register Field Descriptions (continued)

23.15.20 IF3 Mask Register (CAN IF3MSK)

The IF3 Mask register (CAN IF3MSK) is shown and described in the figure and table below.

LEGEND: R = Read; -n = value after reset

The IF3 arbitration register (CAN IF3ARB) is shown and described in the figure and table below.

Figure 23-46. IF3 Arbitration Register (CAN IF3ARB) [offset = 0x148]

LEGEND: R = Read; -n = value after reset

SPRUH22I – April 2012 – Revised November 2019

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Mask data read observation

Mask data has not to be read.

Mask data has to be read to enable next IF3 update.

Figure 23-45. IF3 Mask Register (CAN IF3MSK) [offset = 0x144]

Table 23-23. IF1 and IF2 Mask Registers Field Descriptions

Mask Extended Identifier

The extended identifier bit (IDE) has no effect on the acceptance filtering.

The extended identifier bit (IDE) is used for acceptance filtering.

Note: When 11-bit ("standard") identifiers are used for a message object, the identifiers of received

data frames are written into bits ID[28:18]. For acceptance filtering, only these bits together with

mask bits Msk[28:18] are considered.

Mask Message Direction

The message direction bit (Dir) has no effect on the acceptance filtering.

The message direction bit (Dir) is used for acceptance filtering.

Identifier Mask

The corresponding bit in the identifier of the message object is not used for acceptance filtering

(don't care).

The corresponding bit in the identifier of the message object is used for acceptance filtering.

CAN Control Registers

M3 Controller Area Network (CAN)

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