SI3015-FS Silicon Laboratories Inc, SI3015-FS Datasheet - Page 58

• Manufacturer Part Number: SI3015-FS
• Description: SI2400 ISOMODEM LINE-SIDE
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3015-FS

• Data Format: V.90
• Interface: Serial
• Voltage - Supply: 3.3 V ~ 5 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Baud Rates: -

Si2400
S36 (ALARM1). Alarm 1 (!7 Mode Only)
Reset settings = 0011_0000b (0x30)
58
Note: S36 is reconfigured as Alarm 1, a bit-mapped register, in !7 mode only. In all other modes, S36 is SKDTL (Second
Name
Type
Bit
7:6
5:4
3:2
1:0
Bit
Kissoff Tone Detect Length).
Name
IDKT
PON
POF
D7
IT
POF
R/W
Pulse Off Time
00 = 25 ms.
01 = 50 ms.
10 = 65 ms.
11 = Use S2C register.
Pulse On Time.
00 = 25 ms.
01 = 50 ms.
10 = 65 ms.
11 = Use S2B register.
Intermessage Delay and Kissoff Timeout
This register field defines two parameters. The Intermessage Delay defines the time the Si2400
waits prior to sending a subsequent message. The Kissoff Timeout defines the time the Si2400
waits for a Kissoff Tone prior to declaring that there is no kissoff tone detected.
00 = Intermessage Delay is measured relative to the end of Kissoff and it is a fixed delay
of 2.4 s. The Kissoff Timeout is measured relative to the end of Kissoff and it is a fixed
value of 2 s.
01 = Intermessage Delay is measured relative to the end of Kissoff and it is determined by
S1F[4:0] (IMT). The Kissoff Timeout is measured relative to the end of Kissoff and it is deter-
mined by S1F[7:5] (KOT).
10 = Intermessage Delay is measured relative to the end of the previous message and it is a
fixed delay of 3.4 s. The Kissoff Timeout is measured relative to the end of Kissoff and it is a
fixed value of 2 s.
11 = Intermessage Delay is measured relative to the end of the previous message and it is
determined by S1F[7:5] (KOT). The Kissoff Timeout is measured relative to the end of Kissoff
and it is determined by S1F[7:5] (KOT).
Interdigit Timing
The controlled timing between the pulse digits.
00 = The timing between the end of a digit to the start of the next digit is fixed at 660 ms.
01 = The timing between the end of a digit to the start of the next digit is defined by the S2D
register.
10 = The timing between the start of a digit to the start of the next digit is fixed at 800 ms.
11 = The timing between the start of a digit to the start of the next digit is defined by the S2D
register.
D6
D5
PON
R/W
D4
D3
IDKT
R/W
Rev. 1.1
D2
Function
D1
R/W
IT
D0