Motorola 700 Series Installation And Use Manual page 11

Chapter 3 Debugger General Information
Overview of M68000 Firmware.......................................................................... 3-1
Description of 162Bug ......................................................................................... 3-1
162Bug Implementation ...................................................................................... 3-3
Installation and Startup....................................................................................... 3-3
Prom Versions ................................................................................................3-7
Autoboot................................................................................................................3-7
ROMboot ...............................................................................................................3-9
Network Boot......................................................................................................3-10
Restarting the System ........................................................................................3-10
Reset............................................................................................................... 3-11
Abort.............................................................................................................. 3-11
Break ..............................................................................................................3-12
SYSFAIL* Assertion/Negation .................................................................. 3-12
MPU Clock Speed Calculation................................................................... 3-13
Memory Requirements...................................................................................... 3-13
Disk I/O Support ...............................................................................................3-15
Blocks Versus Sectors .................................................................................. 3-15
Device Probe Function ................................................................................ 3-16
Disk I/O via 162Bug Commands.............................................................. 3-16
IOI (Input/Output Inquiry)................................................................. 3-16
IOP (Physical I/O to Disk)................................................................... 3-16
IOT (I/O Teach)..................................................................................... 3-17
IOC (I/O Control) ................................................................................. 3-17
BO (Bootstrap Operating System) ...................................................... 3-17
BH (Bootstrap and Halt) ...................................................................... 3-17
Disk I/O via 162Bug System Calls............................................................ 3-17
Default 162Bug Controller and Device Parameters................................ 3-19
Disk I/O Error Codes.................................................................................. 3-19
Network I/O Support ....................................................................................... 3-19
Intel 82596 LAN Coprocessor Ethernet Driver ....................................... 3-20
UDP/IP Protocol Modules ......................................................................... 3-20
RARP/ARP Protocol Modules .................................................................. 3-21
BOOTP Protocol Module............................................................................ 3-21
TFTP Protocol Module ................................................................................ 3-21
Network Boot Control Module.................................................................. 3-21
Network I/O Error Codes .......................................................................... 3-22
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