Motorola MC68824 User Manual page 9

Token-passing bus controller
Table of Contents

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TABLE OF CONTENTS (Continued)
Paragraph
Page
Number
Title
Number
Section 7
TBC Interfaces
7.1
T8C-to-Host Processor Interface.. .................................. ..................... 7-1
7.2
Non-M68000 8us Interface ................ ................................................ 7-1
7.3
MAC Sublayer-to-Physical-Layer Interface...................... ...................... 7-4
Section 8
Electrical Specifications
8.1
Maximum Ratings...........................................................................
8-1
8.2
Thermal Characteristics.... .................... ........ ........ .... .......... .......... .... 8-1
8.3
Power Considerations......................................................................
8-1
8.4
DC Electrical Characteristics.............................................................. 8-2
8.5
AC Electrical Characteristics.............................................................. 8-2
Section 9
Ordering Information and Mechanical Data
9.1
Package Types...............................................................................
9-1
9.2
Standard Ordering Information..........................................................
9-1
9.3
Pin Assignments.............................................................................
9-2
9.4
Package Dimensions........................................................................ 9-3
Appendix A
IEEE 802.4 Operation
A.1
Fu nctions .... ..... ...... . ......................... . ................................ . ........... A-1
A.2
Steady Station Operation.................................................................. A-1
A.3
Initialization........................................................................ ........... A-2
A.4
Passing the Token........................................................................... A-2
A.5
Adding New Stations................. ...................... ........ ........................ A-3
A.6
Priority............ ...... ...... ......... .................. ............ .............. ............ A-4
Appendix B
Frame Formats and Addressing
8.1
Frame Formats and Addressing......................................................... 8-1
8.1.1
Preamble...................................................................... ........... 8-1
8.1.2
Start Delimiter .......................................................................... 8-1
8.1.3
Frame Control..........................................................................
8-2
8.1.4
Address Fields..........................................................................
8-3
8.1.5
Data................ ............. ............. ........................... .. ... ............. 8-3
8.1.6
Frame Check Sequence (FCS)................ ....................................... 8-3
8.1.7
End Delimiter ........................................................................... 8-3
8.1.8
Invalid Frames.......................................................................... 8-3
8.1.9
Abort Sequence........................................................................ 8-4
MOTOROLA
viii
MC68824 USER'S MANUAL

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