Motorola DDS/MR64, Installation And Operation Manual

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Configuration
4-2 DDS/MR64
CONFIGURATION OPTION DESCRIPTIONS
Configuration options available through the front panel are as follows:
Timing
Transmitter timing may be slaved to
•
INTERNAL timing provided by the DDS/MR64 for LDM
applications.
•
DDS received data timing
•
EXTERNAL timing provided by DTE
Normal operation uses DDS received data timing.
Rate
The rate option is selectable to 2.4, 4.8, 9.6, 19.2, 56 kbps, or 64 kbps
clear channel.
Synchronous/AsynchronousSYNC/ASYNC
The sync/async option is used to configure the DDS/MR64 to operate
either synchronously or asynchronously.
Bits Per WordBITS/WORD
The bits/word option is used to select the asynchronous word size. The
word size is computed by adding the number of data bits, the number of
stop bits, the number of parity bits (0 to 1), and one start bit. The bits/
word option can be 8, 9, 10, or 11. The previous option SYNC/ASYNC
must be selected to ASYNC for this option. If SYNC is selected, this
option does not apply and is not displayed.
☞
Note
If the async data rate is 38.4 or 57.6 kbps, the 8 BITS PER
WORD and 9 BITS PER WORD options will not be
displayed.