RCA 70/700 Series Reference Manual page 37

N - First Character
oj End-oj-Message
Sequence (Cont'd.)
S -
End oj Trans-
mission Code
CCM Initialization
12-9 - 0101 Identical to 2
3
- 2
0
of CRB (Vari-
able by program). Generate CM in-
dicating receipt of valid end-of-message
sequence which would not have to be
stored in processor memory.
13 - 0 Do not terminate existing command
(Receive).
14 - 0 Exclude this character from BP count.
15 - 1 Ignore N's so that they will not be
passed to memory.
16 - 0 OW-2 not required.
17 - Parity.
• 1. Receive/Transmit set to 1 - present only when receiving NDB set to
o -
system should be out of data block when S is received.
Sequence counter setting is not necessary when this character could
be received.
2. OW-1 Bit Settings:
2, 1, 0 (Action Control) - 001, unconditional action.
3 - 0 Not Used.
2-9
4 - 0 S should not set NDB.
5 - 0 S should not reset NDB.
6 - 0 Do not inhibit resetting of sequence
counter.
8,
7 - 00 Reset sequence counter (transmis-
sion is complete from this particular
terminal).
12-9 - 0110 Identical to 2
3
- 2
0
of CRB (vari-
able by program). Generate CM in-
dicating receipt of valid end-of-trans-
mission character. Therefore, the
EOT character would not have to be
stored in processor memory.
13 - 1 Terminate the existing command
(Receive) . The next command would be
Transmit (Write) in order to poll next
terminal in polling sequence.
14 - 0 Exclude from BP count.
15 - 1 Ignore S so it will not be passed into
memory.
16 - 0 OW-2 not required.
17 - Parity.