SI2493-C-FS Silicon Laboratories Inc, SI2493-C-FS Datasheet - Page 91

• 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

Bit 13 (TES) = 1
escape sequence. To successfully escape from data
mode to command mode using “+++”, there must be no
UART activity for a guard period determined by register
S12, both before and after the “+++”. S12 can be set for
a period ranging from 200 ms to 5.1 seconds.
Bit 12 (CIDM) = 0
U70[4] (CID), caller ID, from triggering an interrupt. If
CIDM = 1
transition on CID.
Bit 11 (OCDM) = 0
triggered with a change in OCD. If OCDM = 1
to-high transition on U70[3] (OCD), overcurrent detect,
triggers an interrupt. This bit must be set for Australia
and Brazil.
7:5
Bit
15
14
13
12
11
10
9
8
4
Reserved Read returns zero.
Reserved Read returns zero.
b
OCDM
DCDM
PPDM
Name
CIDM
, an interrupt is triggered with a low-to-high
HES
TES
RIM
CID
b
b
(default) enables the traditional “+++”
b
Function
Enable Hardware Escape Pin.
0 = Disable.
1 = Enable.
Enable Escape (+++).
0 = Disable.
1 = Enable.
Caller ID Mask.
0 = Change in CID does not affect INT.
1 = CID low-to-high transition triggers INT.
Overcurrent Detect Mask.
0 = Change in OCD does not affect INT.
(“X” result code is not generated in command mode.)
1 = OCD low-to-high transition triggers INT.
(“X” result code is generated in command mode.)
Parallel Phone Detect Mask.
0 = Change in PPD does not affect INT.
1 = PPD low-to-high transition triggers INT.
Ring Indicator Mask.
0 = Change in RI does not affect INT.
1 = RI low-to-high transition triggers INT.
Data Carrier Detect Mask.
0 = Change in DCD (U70, bit 0) does not affect INT.
1 = DCD high-to-low transition triggers INT.
Caller ID (sticky).
1 = Caller ID preamble detected; data to follow. Clears on :I read.
(default) prevents a change in
(default), an interrupt is not
Table 60. U70 Bit Map
b
, a low-
Rev. 0.9
Bit 10 (PPDM) = 1
transition in U70[2] (PPD), parallel phone detect, to
trigger an interrupt. If PPDM = 0
triggered with a change in PPD.
Bit 9 (RIM) = 1
in U70[1] (RI), ring indicator, to trigger an interrupt. If
RIM = 0
RI.
Bit 8 (DCDM) = 1
transition in U70[0] (DCD), data carrier detect, to trigger
an interrupt. If DCDM = 0
with a change in DCD.
Bits 4:0 are the event indicators described below. All are
“sticky” (i.e., remain set to 1
on an interrupt read (AT:I).
b
, an interrupt is not triggered with a change in
b
(default) causes a low-to-high transition
b
b
(default)
(default) causes a low-to-high
b
, an interrupt is not triggered
b
after the event) and clear
causes
b
, an interrupt is not
a
AN93
high-to-low
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