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Interactive Command Acknowledgment
This response is given after the firmware reads the first word of a multiple-word
command from the CR. This response is useful for avoiding the host software
busy-wait on CRFULL after the first word of a multiple-word command has
been written to the DR. This problem is due to the fact that the first word may
not be accepted by the LANIC for several milliseconds, but the succeeding words
are handshaken with negligible delay. A command acknowledgment response is
not given for a single-word command as it is followed by a command
completion response anyway. See below.
0
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-8
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12
13
14
15
0
0
1
Undefined
I
I
I
I
I
I
,
I
I
I
I
I
Batch Command Completion
The response shown below is given when the firmware completes the execution
of a batch command:
0
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10
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15
0
1
0
Undefined
I
I
,
I
I
I
I
I
r
I
I
I
Fatal Error Response
The fatal error response is given when and event occurs that requires the LANIC
to be fe-initialized. All operations in progress are aborted and pending operations
are suspended. The LANIC is in the KERNEL state after giving this response.
0
1
2
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15
1
1
0
Catastrophe Code
Additional information
I
1 ' 1
I
I
I
I
I
I
J
Catastrophe code
=
fatal error type (41H
=
SW, 42H
=
HW)
Additional information
=
error number
Principles of Operation
3-10
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