SI3015-F-FS View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
SI3015-F-FS Datasheet PDF : 68 Pages
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Si2403
U68 ITC2
Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Name
LIM
BTE ROV BTD
Type
R/W
R/W R/W R/W
Reset settings = 0x0000
Bit Name
Function
15:8 Reserved Read returns zero.
7:5 Reserved Do not modify.
4
LIM Current Limit.
0 = All other modes.
1 = CTR21 mode.
3 Reserved Do not modify.
2
BTE Billing Tone Protect Enable.
0 = Disabled.
1 = Enabled.
When set, the DAA responds automatically to a collapse of the line-derived power supply dur-
ing a billing tone event. When off-hook, if BTE = 1 and BTD goes high, the dc termination is
released (800 Ω presented to line). If BTE and RIM (U70, bit 9) are set, an RI (U70, bit 1)
interrupt also occurs when BTD goes high.
1
ROV Receive Overload.
The bit is set when the receive input (i.e., receive pin goes below ground) has an excessive
input level. This bit is cleared by writing a 0 to this location.
0 = Normal receive input level.
1 = Excessive receive input level.
0
BTD Billing Tone Detected.
This bit is set if a billing tone is detected. This bit is cleared by writing a 0 to this location.
0 = No billing tone.
1 = Billing tone detected.
Rev. 1.2
45
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