Disk I/O Support
3-17
3
IOT (I/O Teach)
IOT
allows you to change any configurable parameters and
attributes of the device. In addition, it allows you to see the
controllers available in the system.
IOC (I/O Control)
IOC
allows you to send command packets as defined by the
particular controller directly.
IOC
can also be used to look at the
resultant device packet after using the
IOP
command.
BO (Bootstrap Operating System)
BO
reads an operating system or control program from the
specified device into memory, and then transfers control to it.
BH (Bootstrap and Halt)
BH
reads an operating system or control program from a specified
device into memory, and then returns control to 162Bug. It is used
as a debugging tool.
Disk I/O via 162Bug System Calls
All operations that actually access the disk are done directly or
indirectly by 162Bug TRAP #15 system calls. (The command-level
disk operations provide a convenient way of using these system
calls without writing and executing a program.)
Summary of Contents for 700 Series
Page 2: ......
Page 3: ...700 800 Series MVME162LX Embedded Controller Installation and Use V162 7A IH1 ...
Page 48: ...1 34 Board Level Hardware Description 1 ...
Page 70: ...2 22 Hardware Preparation and Installation 2 ...
Page 138: ...A 18 Configure and Environment Commands A ...
Page 144: ...B 6 Disk Tape Controller Data B ...
Page 146: ...C 2 Network Controller Data C ...