SI2400-FS Silicon Laboratories Inc, SI2400-FS Datasheet - Page 59

• Manufacturer Part Number: SI2400-FS
• Description: 2400 BPS ISOMODEM EM SYSTEM-SIDE
• Manufacturer: Silicon Laboratories Inc
• Type: Chipsetr

Specifications of SI2400-FS

• 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 Module
• Supply Voltage (min): 3 V
• Supply Current: 28 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1166 - BOARD EVAL FOR SI2400 ISOMODEM
• Lead Free Status / Rohs Status: Supplier Unconfirmed

S38 (ARM2). Alarm 2 (!7 Mode Only)
Reset settings = 0011_1000
Note: S38 (ALARM2) is used in !7 mode only.
Name
Type
Bit
6:5
4:2
1:0
Bit
7
DBD
R/W
D7
Name
DBD
HMT
DCF
HF
D6
Delay Before Data.
Time the Si2400 waits prior to transmitting data, relative to the end of the handshake
tone.
0 = 300 ms.
1 = Use S2E (RTCT) register contents.
Data Carrier Frequency.
Frequency that the Si2400 will use to transmit.
00 = User programmed. This is accomplished by accessing DSP register 5 prior to using
the !7 command.
01 = 1800 Hz.
10 = 1900 Hz.
11 = 1850 Hz.
Handshake Minimum Time.
The minimum required tone length for a handshake tone or a kissoff tone.
000 = 53 ms.
001 = 160 ms.
010 = 320 ms.
011 = 480 ms.
100 = 640 ms.
101 = 800 ms.
110 = 960 ms.
111 = 1120 ms.
Handshake Frequency.
The frequency that the Si2400 detects as Handshake and Kissoff Tone.
00 = User-defined frequency detectors must be programmed prior to using the !7
command. See DSP Registers.
01 = 1400 Hz only.
10 = 2300 Hz only.
11 = 1400 Hz or 2300 Hz.
DCF
R/W
b
(0x38)
D5
D4
HMT
R/W
D3
Rev. 1.3
D2
Function
D1
R/W
HF
D0
Si2400
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