Technical data

viii
Bringing up the Board ...............................................................................................2-5
Autoboot.............................................................................................................2-8
ROMboot............................................................................................................2-9
Network Boot ...................................................................................................2-10
Restarting the System.............................................................................................. 2-11
Reset................................................................................................................. 2-11
Abort.................................................................................................................2-12
Break ................................................................................................................2-12
Diagnostic Facilities ................................................................................................2-13
CHAPTER 3 172Bug Firmware
Introduction ...............................................................................................................3-1
172Bug Overview......................................................................................................3-1
172Bug Implementation ............................................................................................3-3
Memory Requirements....................................................................................... 3-3
Using 172Bug............................................................................................................3-5
Debugger Commands ................................................................................................3-6
Modifying the Environment ......................................................................................3-9
CNFG - Configure Board Information Block ....................................................3-9
ENV - Set Environment........................................................................................... 3-11
Configuring the 172Bug Parameters ................................................................ 3-11
Configuring the IndustryPacks.........................................................................3-19
CHAPTER 4 Functional Description
Introduction ...............................................................................................................4-1
Summary of Features.................................................................................................4-1
Block Diagram...........................................................................................................4-3
Functional Description .............................................................................................. 4-5
Data Bus Structure..............................................................................................4-5
Microprocessor...................................................................................................4-5
MC68xx060 Cache......................................................................................4-5
No-VMEbus-Interface Option............................................................................ 4-6
Memory Options.................................................................................................4-6
DRAM Options ...........................................................................................4-6
SRAM Options............................................................................................4-7
About the Batteries......................................................................................4-8
EPROM and Flash Memory........................................................................4-9
Battery Backed Up RAM and Clock................................................................4-10
VMEbus Interface and VMEchip2...................................................................4-10