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7 . INITIAL SETTING OF TRANSMISSION CONTROL DATA TO
BUFFER MEMORY
7.2.1
Setting priority of transmission to the AJ71C24 using half-duplex transmission
The following shows how t o set the AJ71C24 t o continue transmission when
the AJ71C24 and an external device (using half-dudex transmission) have
begun sending data to each other simultan~ously.
Setting method
I
( I ) Transmission method
Write
1.
[
0: Full-duplex transmission
1:
Half-duplex transmission
POINTI
*Set bits b l to b15 of address lOFH t o either 0 or 1. (The AJ71C24 will
ignore the settings.)
I
(2) Priority setting when transmission has begun at the same time
b15
to
bO
0
1
(Default: 0)
Write
0.
(This can be omitted since the default is
0.)
If the priority of transmission is set, setting to buffer memory address 11
1
H
is not required.
I
I
Example
The CD terminal check is set to "Enabled". Half-duplex transmission is used and the priorit)
of transmission is set. (AJ71C24 I10 addresses: 80 to
9F)
(Sequence Program)
HS
Write "1" to buffer memory address
10FH.
Leave the setting of buffer memory
addresses 10BH and 110H for defaults.
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