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|  MIL-D-81347C(AS)
Function
Bit Location
10
Fault
11
Lateral Parity Error
12
Longitudinal Parity Error
13
Timing Error
14
Master Clear
15
No Compare
Normal Completion - This Status shall be indicated when the
3.5.2.4.1.3.3.3.2
operation was completed with all conditions "normal" for the instruction performed. A Status con-
dition of Normal Completion shall make it unnecessary for the computer program to examine any other
Status bits. Normal Completion shall be reset if any Status condition not normal for that instruction
exists. Normal Completion shall be reset under the following combinations of Instruction and Status:
Rewind Instructions and specified tape transport not rewinding (except at load point); not a Rewind In-
struction and rewinding; End of File Status and not a Write Tape Mark or Space File or Backspace File
Instruction; and a Write Tape Mark Instruction and not an End of File Status.
R e w i n d i n g - This Status bit shall indicate that the selected trans-
3.5.2.4.1.3.3.3.3
port is rewinding.
End of File - This Status bit shall indicate that the MTC detected
3.5.2.4.1.3.3.3.4
a tape mark.
End of Tape Warning - This Status bit shall be set when the end
3.5.2.4.1.3.3.3.5
of tape marker passes its sensor in the forward direction only.
Load Point - This Status bit shall indicate that the selected MTT
3.5.2.4.1.3.3.6
is at the load point.
Low Tape Warning - This Status bit shall indicate that the tape is
3.5.2.4.1.3.3.3.7
past the variable low tape warning point.
Write Lockout - This Status bit shall indicate that the selected
3.5.2.4.1,3.3.3.8
M T T does not have a write permit ring in the tape reel.
Illegal Instruction - This Status bit shall indicate that no packing
3 . 5 . 2 .4.1.3.3.3.9
density is specified or that no address or multiple MTT addresses are specified.
Illegal Operation - This Status bit shall indicate that a combina-
3.5.2.4.1.3.3.3.10
tion or normal instructions and normal conditions exist that together are illegal, i.e. , reverse direc-
tion at load point and forward directional end of tape.
Improper Frame Count - This Status bit shall indicate that the
3.5.2.4.1.3.3.3.11
character counter in the MTC did not process an integral number of 30-bit words.
Fault - This Status bit shall indicate a condition that requires
3.5.2.4.1.3.3.3.12
manual intervention at the MTT or MTC. The conditions are MTT not ready, MTT Select Not
Answered, or Write Instruction and no Write Permit Ring.
Lateral Parity Error - This Status bit shall indicate a Lateral
3.5.2.4.1.3.3.3.13
Parity Error.
Longitudinal Parity Error - This Status bit shall indicate a
3.5.2.4.1.3.3.3.14
Longitudinal Parity Error.
106
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