Specifications

Si2457/Si2434/Si2415
Rev. 0.91 53
Reset settings = N/A
Reset settings = 0x0000
U6A ITC4
BitD15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
Name OVL
Type R
Bit Name Function
15:3 Reserved Read returns zero.
2OVLOverload Detected.
This bit has the same function as ROV, but clears itself after the overload has been removed.
See the “Billing Tone Detection” section in “AN93: Modem Designer’s Guide”. This bit is not
affected by the BTE bit.
1:0 Reserved Do not modify.
U6C LVS
BitD15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
Name LVS[7:0]
Type R
Bit Name Function
15:8 LVS[7:0] Line Voltage Status.
Eight bit signed, twos complement number representing the tip-ring voltage. Each bit repre-
sents 1 V. Polarity of the voltage is represented by the MSB (sign bit).
0000_0000 = Measured voltage is < 3 V.
7:0 Reserved Read returns zero.