Maxim Integrated Teridian V.22 bis Linux Softmodem for 73M1822/73M1922 MicroDAA - Manual (Page 44)

V.22 bis Linux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043
44 Rev. 1.5
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Bit 7 Enables using USR11 output to enable an external signal path for CID. Bit 7 = 0
sets continuous CID mode where S95 bits 0, 1, 2, and 3 are ignored. Also
enables using USR 11 output to signal DAA to enter idle line signaling state for
LIU-E detection.
Special modes:
S95 = 0X01 0000B
S95 = 0X110000B
S95 = 10011001B
Continuous FSK Caller ID mode.
Continuous DTMF - send detected digits to DTE without “CID:” message.
Detect US Type 1 and Type2 Snoop CID simultaneously. In this mode the
modem may automatically modify S72 register bit 5 to look for Dots (Type1) or
marks (Type 2 Snoop).
S118 Caller ID Ring Interrupt Delay
Disables ring interrupt detection for the specified period of time during CID enable/disable
transitions, measured in ms. Default = 20
=n is disable time in mS.
Line In Use and Parallel Pick Up detection functions
S89 Parallel Pick-up Energy Detection (Default=0)
0 PPU disabled
Bit Value
Bit 1,0 00-11 N command value
Bit 2 0 Reserved
Bit 3 1 PPU Energy (PPU-E) detection enabled
Bit 4 1 Inverts ring input polarity for PPU-V (Default is RingB active low)
Bit 5 1 Inverts ring input polarity for LIU-V (Default is RingB active low)
Bit 6 1
VFI fast connect originate handshake when specifying Bell 212 only
in S30. This works for Bell 212A and V.22 when S30 is set only for
Bell 212A. Other modes cannot be specified in S30.
Will send FLAGS as part of the handshake when Y1 or Y4 is
selected.
Bit 7 1 Reserved
S110 Line-In-Use/Parallel Pick Up Configuration Register
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112 No LIU or PPU enabled.
Bit Value
Bit 0 1 Enables Off-Hook Voltage sensing Parallel pick-up det. (PPU-V)