Silicon Laboratories SI2494/39, SI2493/57/34/15/04 manual International Call Progress Registers

Models: SI2493/57/34/15/04 SI2494/39

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AN93

6.2.2.2. Country-Setting Register Tables

Table 91. International Call Progress Registers

Register

Value

Function

Dial Tone Control

U0–U14

 

Dial Tone Detect Filter

 

 

Coefficients

 

 

 

U15

DTON

Dial Tone On Threshold

 

 

 

U16

DTOF

Dial Tone Off Threshold

 

 

 

U34

DTWD

Dial Tone Detect Window

 

 

 

U35

DMOT

Dial Tone Minimum On Time

 

 

 

 

Busy Tone Control

 

 

 

U17–U2B

 

Busy Tone Detect Filter Coeffi-

 

 

cients

 

 

 

U2C

BTON

Busy Tone On Threshold

 

 

 

U2D

BTOF

Busy Tone Off Threshold

 

 

 

U2E

BMTT

Busy Tone Minimum Total Time

 

 

 

U2F

BDLT

Busy Tone Delta Time

 

 

 

U30

BMOT

Busy Tone Minimum On Time

 

 

 

 

Ringback Cadence Control

 

 

 

U31

RMTT

Ringback Tone Minimum Total

 

 

Time

 

 

 

U32

RDLT

Ringback Tone Delta Time

 

 

 

U33

RMOT

Ringback Tone Minimum On

 

 

Time

 

 

 

 

Ring Detect Control

 

 

 

U49

RGFH

Ring Frequency High

 

 

 

U4A

RGFD

Ring Frequency Delta

 

 

 

U4B

RGMN

Ring Cadence Minimum On

 

 

Time

 

 

 

U4C

RGNX

Ring Cadence Maximum Total

 

 

Time

 

 

 

Rev. 1.3

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Silicon Laboratories SI2494/39, SI2493/57/34/15/04 manual International Call Progress Registers