SI2438FT18-EVB Silicon Laboratories Inc, SI2438FT18-EVB Datasheet - Page 83

• Manufacturer Part Number: SI2438FT18-EVB
• Description: BOARD EVAL SI2438+SI3018 24PIN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2438FT18-EVB

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Register 27. Reserved
Reset settings = xxxx_xxxx
Register 28. Loop Current Status
Reset settings = 0000_0000
Register 29. Line Voltage Status
Reset settings = 0000_0000
Bit
7:0
Bit
7:0
Bit
7:0
Name
Name
Name
Type
Type
Type
Bit
Bit
Bit
LCS2[7:0] Loop Current Status.
Reserved Do not write to these register bits.
LVS[7:0]
Name
Name
Name
D7
D7
D7
Eight-bit value returning the loop current. Each bit represents 1.1 mA of loop current.
0000_0000 = Loop current is less than required for normal operation.
Line Voltage Status.
Eight-bit value returning the loop voltage. Each bit represents 1 V of loop voltage. This regis-
ter operates in on- and off-hook modes. Bit seven of this register indicates the polarity of the
TIP/RING voltage. When this bit changes state, it indicates that a polarity reversal has
occurred. The value returned is represented in 2s complement format.
0000_0000 = No line is connected.
D6
D6
D6
D5
D5
D5
Rev. 1.4
D4
D4
D4
LCS2[7:0]
LVS[7:0]
Function
Function
Function
R
R
Si3050 + Si3011/18/19
D3
D3
D3
D2
D2
D2
D1
D1
D1
D0
D0
D0
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