Intel MD566X User Manual

Page 57

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56K V.92 Data, Fax, and Voice Chipset

Programmer’s Guide

Intel Confidential

57

+MS=m

(cont.)

see “m”

Modulation Selection: (cont.)

V90

56-kbps V.90 asymmetrical connections (transmit): 4800, 7200, 9600,
12,000, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800,
31,200 bps, and 33,600 bps

56-kbps V.90 asymmetrical connections (receive): 28,000, 29,333,
30,666, 32,000, 33,333, 34,666, 36,000, 37,333, 38,666, 40,000,
41,333, 42,666, 44,000, 45,333, 46,666, 48,000, 49,333, 50,666,
52,000, 53,333, 54,666, and 56,000 bps

V92

56-kbps V.92 asymmetrical connections (transmit): 24,000, 25,333,
26,666, 28,000, 29,333, 30,666, 32,000, 33,333, 34,666, 36,000, 37,333,
38,666, 40,000, 41,333, 42,666, 44,000, 45,333, 46,666, 48,000 bps

56-kbps V.92 asymmetrical connections (receive): 28,000, 29,333,
30,666, 32,000, 33,333, 34,666, 36,000, 37,333, 38,666, 40,000,
41,333, 42,666, 44,000, 45,333, 46,666, 48,000, 49,333, 50,666,
52,000, 53,333, 54,666, and 56,000 bps

<automode> When enabled, this parameter allows the modem to negotiate modu-
lation speeds automatically (if an automatic value is defined for that particular mod-
ulation). This feature is also controlled by the Nn AT command. The automode set-
ting is based on which command, Nn or +MS=m, was issued last.

Range: <automode> = 0, 1
Default: <automode> = 1

<automode> = 0

Disabled

<automode> = 1

Enabled

<min rate> This parameter specifies the lowest data transfer rate at which the mo-
dem may establish a carrier signal connection.

Range: <min rate> = 0, 300, 1200, 2400, 4800, 7200, 9600, 12,000, 14,400, 16,800,
19,200, 21,600, 24,000, 26,400, 28,800, 31,200, and 33,600 bps.

Default: <min rate> = 0

<min rate> = 0

Minimum allowed data rate
- <automode> = 1
Lowest data rate = 300 bps
- <automode> = 0
Lowest data rate = (Lowest modulation data rate)

<min rate>

≠ 0

Lowest permitted connection rate

<max rate> This parameter sets the highest speed at which the modem may estab-
lish a connection. This feature is also controlled by the S37 S-register. The <max
rate> setting is based on which command, S37 or +MS=m, was issued last.

Table 3-4.

Data Mode Command Descriptions (Continued)

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