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Item
Description
Not used
LSW F required
Not used
Time out counter
Parity
Character store
Not Used
Special control
Bit
Assign
E9, EIO
Ell
E12, El3
El4 to El6
El7
FO to F8
F9 to Fl3
Fl4
Table 3-4. Line Status Word s (LSW)(Cont'd)
Function
Indicates that LSW F contains
additional CCM action require-
ments.
Permits generation of CM at
timeout interval. (Nominally
20
seconds).
Receive: Previous Character
comparison storage.
Transmit: Temporary storage of
data character which is pre-
ceded by a hardware generated
shift character.
Modify OW address
(refer to bit 4 of OW -2. )
Operation
Set by hardware to indicate character is
present in LSW F character store area.
Reset when character is removed.
See Data Timeout Description.
Stored under control of Operational Word
and as a result of comparison of 2 7 bit
of character and shift bit, B15.
Set and reset by operational word
according to system requirement.
A character is normally used as a control
character.
If
a given character is also
used as SOM, in a system using block
parity, Fl4 would be set upon recognition
of SOMe This would prevent that char-
acter from being recognized as SOM until
this condition was reset by EOM. There-
fore, should the SOM character appear in
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