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APPENDIX C. S REGISTERS
ACTIVE Professional External Modem User’s Manual
28
S14 *
Bit mapped option
Bit 0
0
ATT (Default)
1
ATP
Bit 1
0
ATE0
1
ATE1 (Default)
Bit 2
0
ATQ0 (Default)
1
ATQ1
Bit 3
0
ATV0
1
ATV1 (Default)
Bit 4,5,6
0
AT&K0
3
AT&K3 (Default)
4
AT&K4
5
AT&K5
6
AT&K6
Bit 7
Originate/answer
0
Answer
1
Originate (Default)
S15
Reserved
S16
Bit mapped test option
Bit 0
Local analog loopback (AT&T1)
0
Disabled
1
Enabled
Bit 1
Not used
Bit 2
Local dig ital loopback (AT&T3)
0
Disabled
1
Enabled
Bit 3
Remote digital loopback status
0
Loopback off
1
Loopback in progress
Bit 4
Remote digital loopback (AT&T6)
0
Disabled
1
Enabled
Bit 5
Remote digital loopback with self test (AT&T7)
0
Disabled
1
Enabled
Bit 6
Local analog loopback with self test (AT&T8)
0
Disabled
1
Enabled
Bit 7
Not used
S17
Reserved
Summary of Contents for 560UF/D
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