MX-C250 SIMULATION 6 – 81
101 1 Silent time adjustment when
receiving CM
0 : 75ms 1 : 500ms
2 Individual SiDaa setting judgement
after AT+GCI (ADDG1)
0 : Only GCI command of AT 1 : Activate the SW of indi-
vidual SiDAA registor (U62)
below GCI +.
3 Individual SiDaa setting judgement
after AT+GCI (ADDG3)
0 : Only GCI command of AT 1 : Activate the SW of indi-
vidual SiDAA registor (U63)
below GCI +.
4 Individual SiDaa setting judgement
after AT+GCI (ADDG4)
0 : Only GCI command of AT 1 : Activate the SW of indi-
vidual SiDAA registor (U65)
below GCI +.
5 Individual SiDaa setting judgement
after AT+GCI (ADDG5)
0 : Only GCI command of AT 1 : Activate the SW of indi-
vidual SiDAA registor (U66)
below GCI +.
6 Individual SiDaa setting judgement
after AT+GCI (ITC1)
0 : Only GCI command of AT 1 : Activate the SW of indi-
vidual SiDAA registor (U67)
below GCI +.
7 Individual SiDaa setting judgement
after AT+GCI (ITC3)
0 : Only GCI command of AT 1 : Activate the SW of indi-
vidual SiDAA registor (U68)
below GCI +.
8 Individual SiDaa setting judgement
after AT+GCI (ITC4)
0 : Only GCI command of AT 1 : Activate the SW of indi-
vidual SiDAA registor (U6A)
below GCI +.
102 1 U62 Reg. DAAC1 FULL2 0 : DAA FULL2 bit cleared 1 : DAA FULL2 bit set.
2 U62 Reg. DAAC1 On-Hook Speed
2
0 : Not used at this moment 1 : Not used at this moment
3 U62 Reg. DAAC1 FOH 0 : Automatic calibration timer
set to 426 ms.
1 : Automatic calibration
timer set to 106 ms.
4 U62 Reg. DAAC1 DL 0 : Digital loopback beyond
isolation capacitor interface.
1 : Digital loopback across
isolation capacitor interface
only.
5 - 8 U63 Reg. DAAC3 AC Termination
Select
Real 600 Ω 0 0 0 0
220 Ω + (820 Ω || 120 nF) and
220 Ω + (820 Ω || 115 nF)
0 0 1 1
370 Ω + (620 Ω || 310 nF) 0 1 0 0
Global complex impedance 1 1 1 1
103 1 U65 Reg. DAAC4 PWM Gain 0 : No gain. 1 : 6 dB gain applied to
AOUT.
2 U65 Reg. DAAC4 Powerdown 0 : Normal. 1 : Powerdown.
3 U65 Reg. DAAC4 Powerdown
Line-Side Chip
0 : Normal operation. 1 : Places the Si3018 in
powerdown mode.
4 U66 Reg. DAAC5 Frame Detect 0 : Isolation link frame lock not
established.
1 : Isolation link frame lock
established.
5 - 6 U67 Reg. ITC1 Minimum Opera-
tional Loop Current
10mA 0 0
12mA 0 1
14mA 1 0
16mA 1 1
7 U67 Reg. ITC1 Current Limiting
Enable
0 : Current limiting mode dis-
abled.
1 : Current limiting mode
enabled.
8 U67 Reg. ITC1 DC Impedance
Selection
0 : 50 Ω dc termination slope is
selected.
1 : D800
Ω dc termination is
selected.
104 1 - 2 U67 Reg. ITC1 TIP/RING Voltage
Adjust
3.1 V–4 dB 0 0
3.2 V–2 dB 0 1
3.35 V0 dB 1 0
3.5 V0 dB 1 1
3 U67 Reg. ITC1 Ringer Impedance 0 : Maximum (high) ringer
impedance.
1 : Synthesize ringer
impedance. C
4 U67 Reg. ITC1 Ringer Threshold
Select
0 : 11 to 22 Vrms. 1 : 17 to 33 Vrms.
5 U67 Reg. ITC1 On-Hook Speed 0 : Not used at this moment 1 : Not used at this moment
6 U68 Reg. ITC3 Billing Tone Protect
Enable
0 : Disabled. 1 : Enabled.
7 U68 Reg. ITC3 Receive Overload 0 : Normal receive input level. 1 : Excessive receive input
level.
8 U68 Reg. ITC3 Billing Tone
Detected
0 : No billing tone. Billing tone detected
(cleared by writing 0).
SW
No.
Bit
No.
System set-
tings
Item SW selection and function Remarks