STM8S datasheet(415/467 Pages) STMICROELECTRONICS

415 / 467 page

DocID14587 Rev 14

415/467

RM0016

Controller area network (beCAN)

427

CAN mailbox identifier register 1 (CAN_MIDR1)

Address offset: See Table 66. and Table 67.

Reset value: 0xXX

CAN mailbox identifier register 2 (CAN_MIDR2)

Address offset: See Table 66. and Table 67.

Reset value: 0xXX

654

3210

Reserved

IDE

RTR

STID[10:6] / EXID[28:24]

rwrw

Bit 7 Reserved.

Bit 6 IDE Extended identifier

This bit defines the identifier type of message in the mailbox.

0: Standard identifier.

1: Extended identifier.

Bit 5 RTR Remote transmission request

0: Data frame

1: Remote frame

Bits 4:0 STID[10:6] Standard identifier

5 most significant bits of the standard part of the identifier.

EXID[28:24] Extended identifier

5 most significant bits of the “Base” part of extended identifier.

654

3210

STID[5:0] / EXID[23:18]

EXID[17:16]

Bits 7:2 STID[5:0] Standard Identifier

6 least significant bits of the standard part of the identifier.

EXID[23:18] Extended Identifier

6 least significant bits of the “Base” part of extended identifier.

Bits 1:0 EXID[17:16] Extended Identifier

2 most significant bits of the “Extended” part of the extended identifier.

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