si3200-x-gs Silicon Laboratories, si3200-x-gs Datasheet - Page 75

• Manufacturer Part Number: si3200-x-gs
• Description: Dual Programmable Cmos Slic With Line Monitoring
• Manufacturer: Silicon Laboratories

LBCON: Loopback Enable (Register Address 22)
(Register type: Diagnostic)
Reset settings = 0x00
LCRRTP: Loop Closure/Ring Trip/Ground Key Detection (Register Address 9)
(Register type: Operational)
Reset settings = 0x40
Note: Detect bits are not sticky bits. Refer to interrupt status for interrupt bit history indication.
Name
Name
Type
Type
Bit
6:0
Bit
7:6
Bit
7
Bit
5
4
3
2
1
0
Reserved
Reserved
VOCTST
LONGHI
SPEED
DLM
Name
Name
R/W
D7
CMH
DLM
RTP
LCR
D7
D6
Codec Loopback Mode Enable.
0 = Codec loopback mode disabled.
1 = Codec loopback mode enabled.
Read returns zero.
Read returns zero.
Common Mode High Threshold.
Indicates that common-mode threshold has been exceeded.
0 = Common-mode threshold not exceeded.
1 = Common-mode threshold exceeded.
Speedup Mode Enable.
0 = Speedup disabled.
1 = Automatic speedup.
V
Indicates that battery voltage has dropped and V
0 = V
1 = V
Ground Key Detect Flag.
0 = Ground key event has not been detected.
1 = Ground key event has been detected.
Ring Trip Detect Flag.
0 = Ring trip event has not been detected.
1 = Ring trip event has been detected.
Loop Closure Detect Flag.
0 = Loop closure event has not been detected.
1 = Loop closure event has been detected.
D6
OC
Tracking Status.
OC
OC
tracking threshold not exceeded, V
tracking threshold exceeded, V
CMH
D5
R
D5
SPEED
Preliminary Rev. 0.96
D4
R
D4
VOCTST
D3
D3
R
Function
Function
TR on-hook
TR on-hook
LONGHI
D2
OC
D2
= V
R
tracking is enabled.
OCtrack
= V
OC
.
.
RTP
D1
D1
R
LCR
D0
D0
Si3232
R
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