Table 3-4. Line Status Words (Lsw) - RCA 70/700 Series Reference Manual

Table 3-4. line Status Words (LSW)
Item
Bit
Function Operation
Description
Assign
Bit accumulator /
AO to All Character assembly and serializing. Incremented by bit transfer to/from buf-
distributor fer and character transfer store.
Accommodates codes having a maximum
of 11 bits, including framing bits, as
specified by systems classification.
LSWA 11 is used for control bit when 11
bit code is used.
Define character A12 Synchronization detection and control. Enable transfer:::; between character
transfer store and bit accumulator /
distributor.
Not Used A13, A14
Buffer neutral A15
Buffer neutral status recording. Set when buffer receives Term. Reset
when command initiated.
Not Used A16
Parity
A17
Character BO to B8 Character storage between pro-
transfer store cessor and bit accumulator/
distributor.
Buffer reporting B9 to B12 Buffer report storage.
U sed for generation of coordination
message.
Block parity B13 Indication that next character Set by operational word - Reset by block
is block parity.
parity character.
Output character
B14 Character transfer control. Con- Set and reset by hardware.
from memory troIs transfer of character from
character transfer store to bit accumu-
lator / distributor.