Data Sheet
September 2001
L9215A/G
Short-Loop Sine Wave Ringing SLIC
Operating States
Table 2. Control States
B0 B1 B2 BR
State
1
1
0
1 Forward active
1
1
0
0 Forward active with PPM
1
0
0
1 Reverse active
1
0
0
0 Reverse active with PPM
1
1
1
1 On-hook transmission forward battery (in this state, the device will power up)
1
1
1
0 On-hook transmission with PPM forward battery
1
0
1
1 On-hook transmission reverse battery
1
0
1
0 On-hook transmission with PPM reverse battery
0
1
1
1 Scan
0
0
0
1 Disconnect
0
1
1
0 Ring
Table 3. Supervision Coding
NSTAT
TRGDET
0 = off-hook or ring trip or TSD. 0 = no ring or tip ground
1 = on-hook and no ring trip and no 1 = ring or tip ground
TSD or DISCONNECT state.
Agere Systems Inc.
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