Rainbow-electronics ATmega64C1 Manuel d'utilisateur télécharger pdf (Page 196)

196

7647A–AVR–02/08

ATmega32/64/M1/C1

– 0 - reply not ready.

– 1 - reply ready and valid.

• Bit 4 – IDE: Identifier Extension

IDE bit of the remote or data frame to send.

This bit is updated with the corresponding value of the remote or data frame received.

– 0 - CAN standard rev 2.0 A (identifiers length = 11 bits).

– 1 - CAN standard rev 2.0 B (identifiers length = 29 bits).

• Bit 3:0 – DLC3:0: Data Length Code

Number of Bytes in the data field of the message.

DLC field of the remote or data frame to send. The range of DLC is from 0 up to 8. If DLC field >8

then effective DLC=8.

This field is updated with the corresponding value of the remote or data frame received. If the

expected DLC differs from the incoming DLC, a DLC warning appears in the CANSTMOB

16.11.3 CAN Identifier Tag Registers -

CANIDT1, CANIDT2, CANIDT3, and CANIDT4

V2.0 part A

V2.0 part B

V2.0 part A

• Bit 31:21 – IDT10:0: Identifier Tag

Identifier field of the remote or data frame to send.

This field is updated with the corresponding value of the remote or data frame received.

• Bit 20:3 – Reserved Bits

Bit 15/7 14/6 13/5 12/4 11/3 10/2 9/1 8/0

- - - - - RTRTAG - RB0TAG CANIDT4

--------CANIDT3

IDT

0-----CANIDT2

IDT

3 CANIDT1

Bit 31/23 30/22 29/21 28/20 27/19 26/18 25/17 24/16

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial Value--------

Bit 15/7 14/6 13/5 12/4 11/3 10/2 9/1 8/0

IDT

0 RTRTAG RB1TAG RB0TAG CANIDT4

IDT

5 CANIDT3

IDT

13 CANIDT2

IDT

21 CANIDT1

Bit 31/23 30/22 29/21 28/20 27/19 26/18 25/17 24/16

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial Value--------

1 2 ... 191 192 193 194 195 196 197 198 199 200 201 ... 365 366

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Rainbow-electronics ATmega64C1 Manuel d'utilisateur Page 196

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