SI2400-KS Silicon Laboratories Inc, SI2400-KS Datasheet - Page 58

• Manufacturer Part Number: SI2400-KS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc
• Type: Integrated Global DAAr

Specifications of SI2400-KS

• Package / Case: 16-SOIC (3.9mm Width)
• Data Format: V.21, V.22, V.23, Bell 103, Bell 212A
• Baud Rates: 2.4k
• Interface: UART
• Voltage - Supply: 3 V ~ 5.25 V
• Mounting Type: Surface Mount
• Product: Modem Chip
• Supply Voltage (min): 3 V
• Supply Current: 21 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: 336-1166 - BOARD EVAL FOR SI2400 ISOMODEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 336-1093

Si2400
S36 (ARM1). Alarm 1 (!7 Mode Only)
Reset settings = 0011_0000
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
IT
D7
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
b
(0x30)
D5
PON
R/W
D4
D3
Rev. 1.3
IDKT
R/W
D2
Function
D1
R/W
IT
D0