CPI-C Reference
CPI Communications supports two modes for sending and receiving data on
a conversation:
- Half-duplex--Only one of the programs has
send control, the right to send data, at any time.
Send control must be transferred
to the other program before that program can send data.
- Full-duplex--Both programs can send and receive
data at the same time.
Thus, both programs have send control.
The send-receive mode on a conversation is determined at
the time the conversation is established using Allocate.
For further information, see "Characteristic Values and Send-Receive Modes".
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