L9215A/G
Short-Loop Sine Wave Ringing SLIC
Data Sheet
September 2001
Operating States
Table 2. Control States
B0
1
B1
1
B2
0
BR
1
State
Forward active
1
1
0
0
Forward active with PPM
Reverse active
1
0
0
1
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
Ring
0
1
1
0
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.
11
AGERE [ AGERE SYSTEMS ]
