MAC7200 datasheet(579/976 Pages) FREESCALE

Part #	MAC7200

Description	MAC7200 Microcontroller Family Reference Manual

PDF	976 Pages

Scroll/Zoom	100%

Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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579 / 976 page

FlexCAN2 Implementation on the MAC7200

MAC7200 Microcontroller Family Reference Manual, Rev. 2

Freescale Semiconductor

501

28.1.3.3

Remove Frame

A Remote Frame is transmitted by a bus unit to request the transmission of the DATA FRAME with the

same IDENTIFIER. The length is 45 bits (including minimum interframe space).

•

INTERFRAME SPACE - Minimum of 1 recessive bit [1 bit]

•

START OF FRAME - 1 dominant bit [1 bit]

•

ARBITRATION FIELD - [12 bits]

— IDENITIFIER - The Message ID [11 bits]

— RTR-bit - 1 recessive bit [1 bit]

•

CONTROL FIELD - [6 bits]

— RESERVED - Reserved for future use [2 bits]

— DATA LENGTH CODE - Specifies the number of data bytes in the payload [4 bits]

•

CRC FIELD - [16 bits (?)]

— CRC SEQUENCE - The frame check sequence [15 bits (?)]

— CRC DELIMITER - 1 recessive bit [1 bit]

•

ACK FIELD - [2 bits]

— ACK SLOT - Acknowledge reception of the CRC sequence with 1 dominant bit [1 bit]

— ACK DELIMITER - 1 recessive bit [1 bit]

MAC7200 Datasheet(PDF) 579 Page - Freescale Semiconductor, Inc