Low Power V.22 Modem
CMX867
Tx Mode Register b2-0: Tx Data source (DPSK and FSK: Synchronous mode)
In Synchronous mode (b4-3 = 11) these three bits select the source of the data fed to the Tx
FSK or DPSK scrambler and modulator.
b2 b1 b0
1
x
x Data bytes from Tx Data Buffer
0
1
1 Continuous 1s
0
1
0 Continuous 0s
0
0
x Continuous dibits ’00,11’ in 1200bps DPSK mode, continuous
alternating 1s and 0s in all other modes.
© 2004 Consumer Microcircuits Limited
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