character. Character buffering of up to four bytes is
accomplished within the2703 unit for start/stop type
communications, while eight bytes can be buffered
for synchronous (BSC) operations. When communi
cating with the channel, the2703 operates in multiple
byte multiplex mode to request or transfer a short
burst of up to four bytes each time a line requires
service.On both input and output operations with the
channel, any message buffering is performed by the
processing unit. The2703 does not impose restric
tions on message length. All necessary bit-byte con
versions, data control, and matching to common
carrier equipment is accomplished in the transmis
sion control unit.
6.1
accomplished within the
communications, while eight bytes can be buffered
for synchronous (BSC) operations. When communi
cating with the channel, the
byte multiplex mode to request or transfer a short
burst of up to four bytes each time a line requires
service.
channel, any message buffering is performed by the
processing unit. The
tions on message length. All necessary bit-byte con
versions, data control, and matching to common
carrier equipment is accomplished in the transmis
sion control unit.
6.1