Silicon Laboratories SI2493/57/34/15/04 - Manual (Page 145)

AN93
Rev. 1.3 145
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