56
PORTABLE USB MODEM
Register Unit Range Default Description
S38 decimal 0–23 1 Sets downstream data rate
where K56flex provides rates
of 32,000 to 56,000 bps in
2000 bps increments. V.90
provides rates of 28,000 to
56,000 bps in increments of
1333 bps.
0 = V.90 disabled
1 = V.90 autorate K56flex rates
2 = 28,000 bps 2 = 32,000 bps
3= 29,333 bps 3 = 34,000 bps
4 = 30,666 bps 4 = 36,000 bps
5 = 32,000 bps 5 = 38,000 bps
6 = 33,333 bps 6 = 40,000 bps
7 = 34,666 bps 7 = 42,000 bps
8 = 36,000 bps 8 = 44,000 bps
9 = 37,333 bps 9 = 46,000 bps
10 = 38,666 bps 10 = 48,000 bps
11 = 40,000 bps 11 = 50,000 bps
12 = 41,333 bps 12 = 52,000 bps
13 = 42,666 bps 13 = 54,000 bps
14 = 44,000 bps 14 = 56,000 bps
15 = 45,333 bps
16 = 46,666 bps
17 = 48,000 bps
18 = 49,333 bps
19 = 50,666 bps
20 = 52,000 bps
21 = 53,333 bps
22 = 54,666 bps
23 = 56,000 bps
Upstream data rates
The upstream V.90 data rates are 4800 to
33,600 bps in 2400-bps increments.