ST72561AR7-Auto datasheet(254/324 Pages) STMICROELECTRONICS

254 / 324 page

beCAN controller (beCAN)

ST72561-Auto

254/324

Doc ID 12370 Rev 8

Reset value: 0000 0000 (00h)

Note:

All bits of this register are set and cleared by software.

Bits 7:4 = Reserved. Forced to 0 by hardware.

Bit 3 = FMH5 Filter Mode High

Mode of the high registers of filter 5.

0: high registers are in mask mode

1: high registers are in identifier list mode

Bit 2 = FML5 Filter Mode Low

Mode of the low registers of filter 5.

0: low registers are in mask mode

1: low registers are in identifier list mode

Bit 1 = FMH4 Filter Mode High

Mode of the high registers of filter 4.

0: high registers are in mask mode

1: high registers are in identifier list mode

Bit 0 = FML4 Filter Mode Low

Mode of the low registers of filter 4.

0: low registers are in mask mode

1: low registers are in identifier list mode

Filter x register[7:0] (CFxR[7:0])

Read/ write

Reset value: Undefined

In all configurations:

Bits 7:0 = FB[7:0] Filter Bits

Identifier

Each bit of the register specifies the level of the corresponding bit of the expected identifier.

0: dominant bit is expected

1: recessive bit is expected

Mask

Each bit of the register specifies whether the bit of the associated identifier register must

match with the corresponding bit of the expected identifier or not.

0: don’t care, the bit is not used for the comparison

1: must match, the bit of the incoming identifier must have the same level has specified

in the corresponding identifier register of the filter.

FMH5

FML5

FMH4

FML4

FB7

FB6

FB5

FB4

FB3

FB2

FB1

FB0

ST72561AR7-Auto Datasheet(PDF) 254 Page - STMicroelectronics

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