46
C
HAPTER
5: U
SING
THE
M
ODEM
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