SI3015-FS Silicon Laboratories Inc, SI3015-FS Datasheet - Page 36

• 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
!7xxx<CR> Sends the message xxx without dialing.
X1
Search for positive and negative acknowledge tones in
SIA half-duplex 300 bps mode. The Si2400 will respond
36
Before give up on
S39 (CDT)
handshake
The message is sent as soon as the
Si2400 receives the <CR>. After this
message, it is again possible to send
subsequent messages using the “~” and “!”
commands shown above.
S38[4:2] (HMT)
Handshake
Tone
m in.
S38[7] (DBD)
f = S38[1:0] (HF)
S36[1:0] (IT) = 1Xb
Digit
1st
S36[1:0] (IT) = 0Xb
f = S38[6:5] (DCF)
Interdigit
Figure 12. !7 Security Timing
Interdigit
Digit
Last
Rev. 1.1
S36[3:2] (IDKT)
Before Indicating lack
of Kissoff
Interm essage from end of previous
m essage to start of next m essage
with “P” when a positive acknowledge is detected and
“N” when a negative acknowledge is detected.
X2
Return to online mode in SIA half-duplex mode as
transmitter.
X3
Return to online mode in SIA half-duplex mode as
receiver.
S36[3:2] (IDKT) =
S38[4:2] (HMT)
Kissoff
Tone
m in.
1Xb
Intradigit Tim ing
Pulse On = S36[5:4] (PON)
Pulse Off = S36[7:6] (POF)
Pulse freq = S38[6:5] (DCF)
S36[3:2] (IDKT) = 0Xb Interm essage
From end of Kissoff Tone
Digit
1st
2nd Message
Digit
Last