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Table 10 Jumper block J7 connections
5&6Receiver controlled by Comm. Register
4&5Receiver Always Enabled
2&3Transmitter controlled by Comm. Register
1&2Transmitter Always Enabled
PinsDriver Control Function
4.6 J8 - SYNCA to RLEN control
J8 controls the signal path from the RLEN bit in the Communications register to
the SYNCA input to the SCC. If J8 is installed the RLEN bit may be used to
control the SYNCA pin when the SCC is in external SYNC mode. Note: the
RLEN output is still effected when used to control the SYNCA pin.
Table 11 Jumper J8 Selections
OUTRLEN
INSYNCA
Jumper J8Function
Quatech Inc., MPA-200/300 Manual 14