TSS461C datasheet(44/57 Pages) ATMEL

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TSS461C

4193G–AUTO–12/04

Priority Among the

Different Channels

The priority handling on the VAN bus is already explained in the Line Interface section.

The priorities for the messages in the TSS461C is, however, slightly different.

For instance, it's possible that an identifier matches two or more of the identifiers pro-

grammed into the registers. In this case, it is the lowest identifier number that has

priority. i.e., if both identifier 5 and 10 match the identifier received, it is the identifier 5

that will receive the message.

However, since the identifier 5 will become an inactive message when it has received

the frame, the next time the same identifier is seen on the bus, the corresponding data

will be received by identifier 10.

The same is valid for messages to be transmitted, i.e., if two or more messages are

ready to be transmitted, it is the one with the lowest identifier number that will get

priority.

TSS461C bảng dữ liệu(PDF) 44 Page - ATMEL Corporation