Si3016-KS Silicon Laboratories Inc, Si3016-KS Datasheet - Page 37

• Manufacturer Part Number: Si3016-KS
• Description: Telecom Line Management ICs Line-Side device for processors
• Manufacturer: Silicon Laboratories Inc
• Type: Chipsetr

Specifications of Si3016-KS

• Product: Modem Module
• Interface Type: Wire
• Supply Current: 0.3 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register 17. International Control 2
Reset settings = 0000_0000
Bit
7
6
5
4
3
2
1
0
Name
Type
Bit
Reserved Must be zero.
MCAL
Name
CALD
ROV
OPE
BTE
BTD
LIM
D7
Manual Calibration.
0 = No calibration.
1 = Initiate calibration.
Auto-Calibration Disable.
0 = Enable auto-calibration.
1 = Disable auto-calibration.
Current Limit
This bit only affects chip operation when the CTR21 dc termination mode is selected.
0 = No current limiting in CTR21 mode.
1 = Enables current limiting in CTR21 mode. The dc termination will current limit before
60 mA.
Overload Protect Enable.
0 = Disable overload protection.
1 = Enable overload protection.
The overload protection feature prevents damage to the DAA when going off-hook with
excessive line current or voltage. When off-hook, if OPE is set and LVCS = 11111, the dc ter-
mination is disabled (800 Ω presented to the line), the hookswitch current is reduced, and the
OPD bit is set. The OPE bit should be written ~25 ms after going off-hook; it should be written
to 0 to reset.
Billing Tone Protect Enable.
0 = Disabled.
1 = Enabled.
When set, the Si3016 will automatically respond to a collapse of the line-derived power supply
during a billing tone event. When off-hook, if BTE = 1 and BTD goes high, the dc termination
is changed to present 800 Ω to the line, and the DCT pin stops tracking the receive input pin.
During normal operation, the DCT pin tracks the receive input.
Receive Overload.
This bit is set when the receive input has an excessive input level (i.e., receive pin goes below
ground). This bit is cleared by writing a zero to this location.
0 = Normal receive input level.
1 = Excessive receive input level.
Billing Tone Detected.
This bit will be set if a billing tone is detected. This bit is cleared by writing a zero to this loca-
tion.
0 = No billing tone detected.
1 = Billing tone detected.
MCAL
R/W
D6
CALD
R/W
D5
Rev. 1.0
R/W
LIM
D4
Function
OPE
R/W
D3
BTE
R/W
D2
ROV
R/W
D1
Si3016
BTD
R/W
D0
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