SI2493-C-FS Silicon Laboratories Inc, SI2493-C-FS Datasheet - Page 97

• Manufacturer Part Number: SI2493-C-FS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2493-C-FS

• Mfg Application Notes: SI2493/57/34/15/04, Appl Note AN93
• Data Format: V.21, V.22, V.23, V.29, V.32, V.34, V.90, V.92, Bell 103, Bell 212A
• Baud Rates: 56k
• Interface: UART
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

U87 SAM Synchronous Access Mode Configuration Options
UAA V.29 MODE
15:11
15:3
Bit
7:0
Bit
10
9
8
2
1
0
Reserved Read returns zero.
Reserved Read returns zero.
Reserved Read returns zero.
V29ENA
SERM
RUDE
Name
FSMS
XMTT
Name
MINT
Minimal Transparency
0 = Generate two-byte <EM> transparency sequences. This option will use codes
<EM><T5> through <RM><T20> (if possible) for received data containing two back-to-
back bytes requiring transparency (Rev C and later).
1 = Generate one-byte <EM>transparency sequences. This option will only use codes
<EM><T1> through <EM><T4> for received data (Rev B and later).
Special Error Reporting Mode
0 = Ignore unrecognized in-band commands.
1 = Generate <EM><0x45> (“E” for error) in response to any unrecognized in-band
commands.
Framed Sub-Mode Startup
0 = Upon successful connection, enter Transparent Sub-Mode. An <EM><FLAG>
is required to enter Framed Sub-Mode.
1 = Upon successful connection, immediately enter Framed Sub-Mode. The first
received <EM><err> (from a successful hunt) is transformed into an <EM><flag>.
Transmitter Threshold
This value represents the number of bytes before a transmission is started. The follow-
ing values are special:
0
supply a closing flag within the required time or an underrun will occur.
255 The same as infinity, e.g. never start a packet until the closing flag is received.
0 = Disables rude disconnect.
1 = Enables rude disconnect.
0 – Disables V.29.
1 – Enables V.29.
The same as ten. Upon receipt of ten bytes, data is transferred. The DTE must
Rev. 0.9
Function
Function
AN93
97