3Com 3C900B, 3C905B - page 139

TECHNICAL QUICK REFERENCE
135
Register Default Function
S32 (cont.) Bit Value Result
2 4 Reserved.
3 8 Disable V.34 modulation.
4 16 Disable V.34+ modulation.
5-7 32-128 Reserved.
S33 0Bit-mapped register setup. To set the register, see the instructions for S13.
Bit Value Result
0 1 Disable 2400 symbol rate.
1 2 Disable 2743 symbol rate.
2 4 Disable 2800 symbol rate.
3 8 Disable 3000 symbol rate.
416 Disable 3200 symbol rate.
5 32 Disable 3429 symbol rate.
6 64 Reserved
7 128 Disable shaping.
S34 0Bit-mapped register setup. To set registers, see instructions for S13.
Bit Value Result
0 1 Disable 8S-2D trellis encoding.
1 2 Disable 16S-4D trellis encoding.