Table of Contents
I/O System
- INTERRUPTED
USER
PROCESS
I/O MONITOR
PROCEDURE
USER
PROCESS
File Request
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BUFFER
DEVICE DRIVER
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INITIATOR IICOMPLETION
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Section
Section
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DATA
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Next
I/O
Command
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-- - - - - - - - - - - - - - - - - -- - - - -
Ext. Prog. Label
:
{ PI
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Reserved
INTERRUPT
ROUTINE
(GIP)
MULTIPLEXER CHAN
or
SELECTOR CHANNEL
Data
®
,
.
~
@
DEVICE
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f --~----->O'
-CONTROLLER
0 1 - - - - - - .
ICS
~
Interrupt
ZI
Control
' " - - - - - Stack
Figure 7-5.
I/O System Overview
7-8
!
~
Chapters
Table of Contents
Troubleshooting
