SI2457FS18-EVB Silicon Laboratories Inc, SI2457FS18-EVB Datasheet - Page 56

• Manufacturer Part Number: SI2457FS18-EVB
• Description: BOARD EVAL SI2457 + SI3018 16PIN
• Manufacturer: Silicon Laboratories Inc
• Series: ISOmodem®r

Specifications of SI2457FS18-EVB

• Main Purpose: Telecom, Data Acquisition Arrangement (DAA)
• Utilized Ic / Part: Si2457
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Si2457/34/15/04-Si3008
U77 GEN2
Reset settings = 0x401E
56
15:12
Name
Type
Bit
8:0
10
Bit
11
9
Reserved Read returns zero.
OHT[8:0]
D15
IST[3:0]
Name
AOC
HOI
D14
IST[3:0]
R/W
Intrusion Settling Time (250 ms units).
Delay between when the ISOmodem goes off-hook and the off-hook intrusion algorithm
begins. Default is 1 s.
Hang-Up On Intrusion.
0 = ISOmodem will not automatically hang up when an off-hook PPD interrupt occurs.
1 = ISOmodem automatically hangs up on a PPD interrupt. If %Vn commands are set, HOI
also causes the “LINE IN USE” result code upon PPD interrupt.
Auto Overcurrent.
0 = Disable.
1 = Enable.
Note: AOC may falsely detect an overcurrent condition in the presence of line reversals or other
Off-Hook Time (1 ms units).
Time before LVCS is checked for overcurrent condition after going off-hook (30 ms default).
D13
transients. Therefore, this feature should not be used in applications or locations (such as
Japan) where line reversals are common or may be expected.
D12
R/W
D11
HOI
D10
Preliminary Rev. 0.7
AOC
R/W
D9
D8
Function
D7
D6
D5
OHT[8:0]
R/W
D4
D3
D2
D1
D0