CP6100 I/O Process Programming Manual

Using CP6100: Managing Lines
S5064-011
ALTER CIU $CSM.#B,
CPU
2
A
B
$LINE2
$LINE1
$LINE3
A
B
$LINE2
$LINE1
$LINE3
1
$LINE1,
$LINE2
The path to $LINE1 and $LINE2 is through
CPU 1 and Controller A. $LINE1 and
$LINE2 are controlled by the same process.
The path to $LINE3 is through CPU 2 and
Controller B.
The path to $LINE3 is now through CPU 1.
$LINE1 and $LINE2 are unaffected: the
path to them is still through CPU 1 and
Controller A.
2
A
$LINE2
$LINE1
$LINE3
12
$LINE3
ALTER PROCESS
$LINE1,
PATH
Now $LINE1 and $LINE2,
as well as $LINE3, are
owned by Controller B.
Notice that if $LINE1 and
$LINE2 were controlled
by different processes,
$LINE2 would still be
owned by Controller A.
1
$LINE1,
$LINE2
$LINE3
$LINE1,
$LINE2
$LINE3
B
Figure 3-5b. Controller Switch. Controllers Owned by
Different CPUs
October 1985
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