AT&T 3B2/300 Technical Reference Manual page 246

Chapter 3: FUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
SYSTEM OVERVIEW
General . . . . . . . .
382 Computer Address Spectrum
Input/Output Bus System
Data Transfers
Self-Configuration . . .
SYSTEM BOARDS . . . .
CM190A/ED-4C637-30 System Board
CM518A/B/C System Boards
RANDOM ACCESS MEMORY CARDS
CM191A/B/C/D and CM192B Memory Cards
CM523A/ AA/B/D Memory Cards
BACKPLANES . . . . . .
General . . . . . . .
CM193A/B Backplane Board
CM194B Backplane . . .
CM519A Backplane Board
CM519B Backplane Board
CM520A Backplane Board
CM195A NETWORK INTERFACE CARD
General . . . . . . .
INTEL 80186 Microprocessor
Input/Output Bus Control
ID /Vector Register . . . .
Page Register . . . . . .
Peripheral Control and Status Register
Local RAM
Local ROM . . . . . . . . .
Network Interface . . . . . . .
CMl 95A Equipped Device Table Data
3BNET Characteristics . . . . . .
Ethernet Data Packet Format
CMl 95AA ALARM INTERACE CIRCUIT CARD
General
I/0 Bus Interface
Dual Console . .
System Failure Detection and Alarm Generation
External Interface Specification . . . . . .
CM195AA Equipped Device Table Data . . .
CM195AC/CM195AD "DATAKIT" VCS INTERFACE CARD
General . . . . . . .
INTEL 80186 Microprocessor
Input/Output Bus Interface
Nonvolatile Memory
Volatile Memory
External Interface
Data Lines
Control Lines . .
Timer Input/Output
CMl 95AC/CM195AD Equipped Device Table Data
3-1
3-1
3-1
3-9
3-12
3-16
3-26
3-31
3-31
3-85
3-139
3-139
3-146
3-153
3-153
3-154
3-156
3-158
3-160
3-162
3-165
3-165
3-167
3-167
3-169
3-169
3-170
3-171
3-171
3-171
3-172
3-172
3-173
3-175
3-175
3-177
3-178
3-179
3-180
3-181
3-183
3-183
3-185
3-186
3-186
3-186
3-186
3-186
3-187
3-187
3-188
TABLE OF CONTENTS