SI2401-FS Silicon Laboratories Inc, SI2401-FS Datasheet - Page 46

• Manufacturer Part Number: SI2401-FS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc
• Type: Integrated Global DAAr

Specifications of SI2401-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 ~ 3.6 V
• Mounting Type: Surface Mount
• Product: Modem Chip
• Supply Voltage (min): 3 V
• Supply Current: 15 mA
• Maximum Operating Temperature: + 100 C
• Minimum Operating Temperature: - 10 C
• Mounting Style: SMD/SMT
• Package: 16SOIC
• Main Category: Chipset
• Sub-category: ISOmodem
• Maximum Data Rate: 2.4 Kbps
• Typical Operating Supply Voltage: 3.3 V
• Power Supply Type: Digital
• Typical Supply Current: 10 mA
• Minimum Operating Supply Voltage: 3 V
• Maximum Operating Supply Voltage: 3.6 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1167 - BOARD EVAL SI2401 UART INTERFACE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-1095

Si2401
S0D (MF3). Modem Functions 3
Reset settings = 0000_0000 (0x00)
46
Name
Type
Bit
7
6
5
4
3
2
1
0
Bit
Reserved
Name
RBTS
INTP
EHR
EHB
EHE
EHI
RI
D7
Read returns zero.
Ring Indicator.
Specifies the functionality of pin3.
0 = Pin 3 functions as GPIO5 controlled by register SE1.
1 = Pin 3 functions as RI. RI asserts during a ring and negates when no
INT Polarity.
Specifies the polarity of the INT function on pin 11.
0 = An interrupt forces pin 11 low.
1 = An interrupt forces pin 11 high.
Ringback Tone Selector
Controls the unit step size for registers S19, S1A and S1B.
0 = 53.33 ms units. Necessary for detecting a ringback tone.
1 = 10 ms units. Necessary for detecting a reorder tone.
Enable Hangup on Reorder.
Modem is placed on-hook if a ringback or reorder tone is detected. See S0D[4].
0 = Disable.
1 = Enable.
Enable Hangup on Busy.
Modem is placed on-hook if a busy signal is detected.
0 = Disable.
1 = Enable.
Enable Hangup on Intrusion.
Modem is placed on-hook if parallel intrusion is detected.
0 = Disable.
1 = Enable.
Enable Hangup on Escape.
Modem is placed on-hook if a ESC signal is detected.
0 = Disable.
1 = Enable.
ring is present.
R/W
D6
RI
INTP
R/W
D5
Rev. 1.0
RBTS
R/W
D4
Function
EHR
R/W
D3
EHB
R/W
D2
R/W
EHI
D1
EHE
R/W
D0