Motorola MC68824 User Manual page 4

Paragraph
Number
1.1
1.2
1.2.1
1.2.2
1.3
1.3.1
1.3.2
1.4
1.5
1.6
1.7
1.8
1.8.1
1.8.2
1.8.3
2.1
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.1.9
2.1.10
2.1.11
2.1.12
2.1.13
2.1.14
2.1.15
2.1.16
2.1.17
2.1.18
2.1.19
2.1.20
TABLE OF CONTENTS
Page
Title Number
Section 1
Introduction
Features....................................... .................................. .......... .....
1-1
Logical Area Network Standards ........ ........................ ............ ............
1-2
150/051 Reference Model............................................................
1-2
IEEE Local Area Network Standards.............................................. 1-3
IEEE
802.4
Token Bus Local Area Networks.......... ................................
1-3
Token Bus Operation............. ............................... ...... ........... .....
1-3
Options Within IEEE 802.4...... .... .... ................ .................... .... ..... 1-4
TBC Environment. .......... ............ .... .... ............ ........................ .... .....
1-4
Physical Layer Interface....................................................................
1-5
Microprocessor System Bus Interface. ........ .................... ............ .........
1-5
Shared Memory..............................................................................
1-6
Overview of TBC Functional Operation ................................................
1-6
Command Structure Overview .... .................................................
1-6
Frame Reception Overview..........................................................
1-6
Frame Transmission Overview.... ........................................ ......... 1-7
Section 2
Tables
TBC Private Area ............................................................................
2-1
Next Station Address.................................................................
2-1
Previous Station Address............................................................ 2-3
Hi-Priority-Token-Hold Time.......................................................
2-3
Last Token-Rotation-Time ....................................... ................... 2-3
Token Rotation Time at Start of Access Classes...............................
2-4
Target Token Rotation Time for Access Classes...............................
2-4
Token Rotation Time at Start of Ring Maintenance...........................
2-4
Target Rotation Time for Ring Maintenance.................................... 2-4
Ring Maintenance Time Initial Value..............................................
2-5
Source Routing - Source Segment/Bridge 10 (SID) ..........................
2-5
Source Routing - Target Segment/Bridge 10 (TID) ..... ......................
2-5
Segment Number Mask for Source Routing....................................
2-5
Max-Inter-Solicit-Count ........ ............................... ...... ...... ..... .....
2-5
RX Frame Status Error Mask.................................... ....................
2-6
TX Queue Access Class Status............................ ..........................
2-6
TX Queue Access Class Pointers................................................... 2-6
RX Queue Access Class Pointers...................................................
2-6
Free Frame Descriptor Pointer......................................................
2-7
Free Buffer Descriptor Pointer ......................................................
2-7
Group Address Mask............................................. ..................... 2-7
MC68824 USER'S MANUAL
MOTOROLA
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