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46 CHAPTER 5: USING THE MODEM
Analog Modem
Registers
S52 Bit-mapped. Storable.
Bit 7-6. V.34 Rate Selection
0 = Low (conservative)
2 = Aggressive
1 = Medium
Bit 5. V.34 precoding
0 = Disable
1 = Enable
Bit 4. V.34 shaping
0 = Disable
1 = Enable
Bit 3. V.34 pre-emphasis filter
0 = Disable
1 = Enable
Bit 2. V.34 non-linear encoding (warping)
0 = Disable
1 = Enable
Bit 1. V.34 transmit power control
0 = Disable
1 = Enable
Bit 0. V.34 asymmetric bit rates
0 = Disable
1 = Enable