3Com PC Card User Manual page 51

S53 Bit-mapped. Storable.
Bit 7. V.34 3000 High Carrier Frequency.
0 = Disable
1 = Enable
Bit 6. V.34 3000 Low Carrier Frequency.
0 = Disable
1 = Enable
Bit 5. V.34 2800 high carrier frequency.
0 = Disable
1 = Enable
Bit 4. V.34 2800 low carrier frequency.
0 = Disable
1 = Enable
Bit 3. V.34 2743 high carrier frequency.
0 = Disable
1 = Enable
Bit 2. V.34 2743 low carrier frequency.
0 = Disable
1 = Enable
Bit 1. V.34 2400 high carrier frequency.
0 = Disable
1 = Enable
Bit 0. V.34 2400 low carrier frequency.
0 = Disable
1 = Enable
S54 Bit-mapped. Storable.
Bit 7,6,5,4,3. Not used.
Bit 2. V.34 3429 Carrier Frequency.
0 = Disable
1 = Enable
Bit 1. V.34 3200 high carrier frequency.
0 = Disable
1 = Enable
Bit 0. V.34 3200 low carrier frequency.
0 = Disable
1 = Enable
S Registers 47