Maxim Integrated Teridian V.22 bis Linux Softmodem for 73M1822/73M1922 MicroDAA - Manual (Page 46)

V.22 bis Linux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043
46 Rev. 1.5
S116 Parallel-Pick-Up Energy detection Threshold
n 72, 80, 90.

72 1 db energy loss threshold
Value Energy loss detected
72 1 dB loss of energy detection
80 2 dB loss of energy detection
90 3 dB loss of energy detection
This register sets the Threshold for PPU to detect loss of Energy compared to the energy
level at the time of connection.
S122 Parallel Pick Up Debounce Timer
Sets the duration of the parallel pick-up debounce timer in 10ms increments.
=n times 10mS.
S14 General Modem Status Register 1
 170 See following.
S14 reflects the status of certain options.
Bit Value
In data mode

Bit 0 0 Clear channel for receiver.
1 Receive channel speed buffered.
In Call progress mode
 Bit 0 0 Single cadence A or B detection
1 Double Dual cadence detection
Bit 1 0 No echo
 1 Echo on
 Bit 2 0 Result codes enabled
1 Result codes disabled
Bit 3 0 Numeric result codes