ST72561J4-Auto datasheet(251/324 Pages) STMICROELECTRONICS

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ST72561-Auto

beCAN controller (beCAN)

Doc ID 12370 Rev 8

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Bits 7:0 = DATA[7:0] Data

A data byte of the message. A message can contain from 0 to 8 data bytes.

17.8.4

CAN filter registers

CAN filter configuration register 0 (CFCR0)

Read / write

Reset value: 0000 0000 (00h)

Note:

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

To modify the FFAx and FSCx bits, the beCAN must be in INIT mode.

Bit 7 = reserved. Forced to 0 by hardware.

Bits 6:5 = FSC1[1:0] Filter Scale Configuration

These bits define the scale configuration of filter 1.

Bit 4 = FACT1 Filter Active

The software sets this bit to activate filter 1. To modify the filter 1 registers (CF1R[7:0]), the

FACT1 bit must be cleared.

0: filter 1 is not active

1: filter 1 is active

Bit 3 = reserved. Forced to 0 by hardware.

Bits 2:1 = FSC0[1:0] Filter Scale Configuration

These bits define the scale configuration of filter 0.

Bit 0 = FACT0 Filter Active

The software sets this bit to activate filter 0. To modify the filter 0 registers (CF0R[0:7]), the

FACT0 bit must be cleared.

0: filter 0 is not active

1: filter 0 is active

CAN filter configuration register 1 (CFCR1)

Read/ write

Reset value: 0000 0000 (00h)

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

Bit 7 = reserved. Forced to 0 by hardware.

Bits 6:5 = FSC3[1:0] Filter Scale Configuration

These bits define the scale configuration of filter 3.

FSC11

FSC10

FACT1

FSC01

FSC00

FACT0

FSC31

FSC30

FACT3

FSC21

FSC20

FACT2

ST72561J4-Auto Datasheet(PDF) 251 Page - STMicroelectronics

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