Silicon Laboratories SI2493/57/34/15/04 - Manual (Page 92)

A N 9 3
92 Rev. 1.3
U0F 0x000F DT4A0 Dial-tone detection filter stage 4 biquad coefficients. 0x0400
U10 0x0010 DT4B1 0x70D2
U11 0x0011 DT4B2 0xC830
U12 0x0012 DT4A2 0x4000
U13 0x0013 DT4A1 0x80E2
U14 0x0014 DTK Dial-tone detection filter output scaler. 0x0009
U15 0x0015 DTON Dial-tone detection ON threshold. 0x00A0
U16 0x0016 DTOF Dial-tone detection OFF threshold. 0x0070
U17 0x0017 BT1A0 Busy-tone detection filters stage 1 biquad coefficients. 0x0800
U18 0x0018 BT1B1 0x0000
U19 0x0019 BT1B2 0x0000
U1A 0x001A BT1A2 0x0000
U1B 0x001B BT1A1 0x0000
U1C 0x001C BT2A0 Busy-tone detection filter stage 2 biquad coefficients. 0x00A0
U1D 0x001D BT2B1 0x6EF1
U1E 0x001E BT2B2 0xC4F4
U1F 0x001F BT2A2 0xC000
U20 0x0020 BT2A1 0x0000
U21 0x0021 BT3A0 Busy-tone detection filter stage 3 biquad coefficients. 0x00A0
U22 0x0022 BT3B1 0x78B0
U23 0x0023 BT3B2 0xC305
U24 0x0024 BT3A2 0x4000
U25 0x0025 BT3A1 0xB50A
U26 0x0026 BT4A0 Busy-tone detection filter stage 4 biquad coefficients. 0x0400
U27 0x0027 BT4B1 0x70D2
U28 0x0028 BT4B2 0xC830
U29 0x0029 BT4A2 0x4000
U2A 0x002A BT4A1 0x80E2
U2B 0x002B BTK Busy-tone detection filter output scaler. 0x0009
U2C 0x002C BTON Busy-tone detection ON threshold. 0x00A0
U2D 0x002D BTOF Busy-tone detection OFF threshold. 0x0070
Table 46. U-Register Descriptions (Continued)
Register Address
(Hex)
Name Description Default
Value