si3200-x-gs Silicon Laboratories, si3200-x-gs Datasheet - Page 101

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

LCRONHK: Loop Closure Detection Threshold—Off-Hook to On-Hook Transition (RAM Address 23)
Reset settings = 0x00
LONGDBI: Ground Key Detection Debounce Interval (RAM Address 29)
Reset settings = 0x00
LONGHITH: Ground Key Detection Threshold (RAM Address 27)
Reset settings = 0x00
15:0
15:0
15:0
Name
Name
Name
Type
Type
Type
Bit
Bit
Bit
Bit
Bit
Bit
LONGHITH[15:0]
LCRONHK[15:0]
D15
D15
LONGDBI[15:0]
D15
Name
Name
Name
D14
D14
D14
D13
D13
D13
Loop Closure Detection Threshold—Off-Hook to On-Hook Transition.
Programs the loop current threshold at which a valid loop closure event has been
terminated (the off-hook to on-hook transition). The OFFHKTH RAM location
determines the loop current threshold for detecting the off-hook to on-hook transition.
0 to 101.09 mA programmable range, 3.097 µ A/LSB, 396.4 µ A effective resolution.
Usable range is 0 to 61 mA.
Ground Key Detection Debounce Interval.
Programs the debounce interval during the ground key detection process.
Programmable range is 0 to 40.96 s, 1.25 ms/LSB.
Ground Key Detection Threshold.
Programs the longitudinal current threshold at which a valid ground key event is
detected. Hysteresis is provided by programming the LONGLOTH RAM location to a
different value that detects the removal of a ground key event. 0 to 101.09 mA pro-
grammable range, 3.097 µ A/LSB, 396.4 µ A effective resolution. Usable range is 0 to
16 mA.
D12
D12
D12
D11
D11
D11
D10
D10
D10
Preliminary Rev. 0.96
D9
D9
D9
LONGHITH[15:0]
LCRONHK[15:0]
LONGDBI[15:0]
D8
D8
D8
R/W
R/W
R/W
D7
D7
D7
Function
Function
Function
D6
D6
D6
D5
D5
D5
D4
D4
D4
D3
D3
D3
D2
D2
D2
Si3232
D1
D1
D1
D0
D0
D0
101