Intel MD566X User Manual
Page 104
56K V.92 Data, Fax, and Voice Chipset
104
Intel Confidential
Programmer’s Guide
S14
138
Bit-Mapped Options
:
S14 is a read-only register that indicates AT command set-
tings.
Bit 0
Reserved
Bit 1
0
E0 is selected
1*
E1 is selected
Bit 2
0*
Q0 is selected
1
Q1 is selected
Bit 3
0
V0 is selected
1*
V1 is selected
Bit 4
Reserved
Bit 5
0*
T (tone) dial is selected
1
P (pulse) dial is selected
Bit 6
Reserved
Bit 7
0
Answer
1*
Originate
S16
0
Modem Test Options
:
S16 indicates the test in progress.
Bit 0
0*
Local analog loopback disabled
1
Local analog loopback enabled
(&T1)
Bit 1
Reserved
Bit 2–5
Reserved
Bit 6
0*
Analog loopback with self-test disabled
1
Analog loopback with self-test
enabled (&T8)
Bit 7
0*
Reserved
1
Reserved
S18
0
Modem Test Timer
:
S18 specifies the length of time that the modem conducts a
data mode (except V.90 and V.92 mode) loopback test using the &Tn command. Af-
ter timing out, the modem returns to command mode. Setting S18 to “0” disables the
modem test timer; the loopback test must be terminated by issuing the appropriate
escape sequence followed by an AT&T0 or ATH.
Range: 0–255 seconds
Default: 0 seconds
Table 7-1.
S-Register Command Descriptions (Continued)