SI2438FT18-EVB Silicon Laboratories Inc, SI2438FT18-EVB Datasheet - Page 77
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SI2438FT18-EVB
Manufacturer Part Number
SI2438FT18-EVB
Description
BOARD EVAL SI2438+SI3018 24PIN
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI3050-E-FM.pdf
(128 pages)
Specifications of SI2438FT18-EVB
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Register 19. International Control 4
Reset settings = 0000_0000
Bit
7:3
2
1
0
Name
Type
Bit
Reserved
Name
DOD
OPD
OVL
D7
Receive Overload Detect.
This bit has the same function as ROV (Register 17), but clears itself after the overload is
removed. See “5.22.Receive Overload Detection” on page 35. This bit is only masked by the
off-hook counter and is not affected by the BTE bit.
0 = Normal receive input level.
1 = Excessive receive input level.
Recal/Dropout Detect.
When the line-side device is off-hook, it is powered from the line itself. This bit will read 1
when loop current is not flowing. For example, if this line-derived power supply collapses,
such as when the line is disconnected, this bit is set to 1. Additionally, when on-hook, and the
line-side device is enabled, this bit is set to 1.
0 = Normal operation.
1 = Line supply dropout detected when off-hook.
Overload Protect Detect.
This bit is used to indicate that the DAA has detected a loop current overload. The detector fir-
ing threshold depends on the setting of the ILIM bit (Register 26).
OPD
Read returns zero.
0
0
1
1
ILIM
D6
0
1
0
1
Overcurrent Threshold
D5
160 mA
60 mA
160 mA
60 mA
Rev. 1.4
D4
Function
Si3050 + Si3011/18/19
D3
Overcurrent Status
Overcurrent condition has been detected
Overcurrent condition has been detected
No overcurrent condition exists
No overcurrent condition exists
OVL
D2
R
DOD
D1
R
OPD
D0
R
77
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