SI2493-C-GT Silicon Laboratories Inc, SI2493-C-GT Datasheet - Page 25

• Manufacturer Part Number: SI2493-C-GT
• Description: IC ISOMODEM SYSTEM-SIDE 24TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2493-C-GT

• 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: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

<EM><t1>
<EM><t2>
<EM><t3>
<EM><t4>
<EM><t5>
<EM><t6>
<EM><t7>
<EM><t8>
<EM><t9>
<EM><t10>
<EM><t11>
<EM><t12>
<EM><t13>
<EM><t14>
<EM><t15>
<EM><t16>
<EM><t17>
<EM><t18>
<EM><t19>
<EM><t20>
<EM><mark>
<EM><flag>
<EM><err>
<EM><under>
<EM><tover>
<EM><rover>
<EM><resume>
<EM><bnum>
<EM><unum>
<EM><eot>
<EM><ecs>
<EM><rrn>
<EM><rate>
Notes:
Indicator pair
Command /
1.
2.
3.
U87[10] = 1 Can be used to limit the transparency characters in the receive direction, to these four cases only.
The actual value represented in <octnum0><octnum1> = (octnum0 / 2) + (octunum1 x 64)
<EM><0x45> indicates that an unrecognized <EM> command was sent to the modem.
Hex Code
0x5C
0x5D
0xAA
0xAB
0xAC
0xAD
0xAE
0xBA
0xBB
0xBC
0xBE
0x76
0xA0
0xA1
0x77
0xA2
0xA3
0xA4
0xA5
0xA6
0xA7
0xA8
0xA9
0xAF
0xB0
0xB1
0xB2
0xB4
0xB5
0xB6
0xB7
0xB8
0xB9
Transmit a flag; enter Framed Submode if cur-
rently in Transparent Submode. If +ESA[E]=1,
append FCS to end of frame before sending
Terminate carrier, return to command mode.
Resume after a data underrun or overrun
Escape to On-Line command mode
Request rate renegotiation
(applicable if +ESA[C] = 1)
Transmit two 0x19 bytes
Transmit two 0x99 bytes
Transmit two 0x13 bytes
Begin Transparent Mode
Transmit two 0x11 bytes
Table 13. EM In-band Commands and Statuses
Transmit one 0x19 byte
Transmit one 0x99 byte
Transmit one 0x11 byte
Transmit one 0x13 byte
Transmit 0x19, 0x99
Transmit 0x19, 0x11
Transmit 0x19, 0x13
Transmit 0x99, 0x19
Transmit 0x99, 0x11
Transmit 0x99, 0x13
Transmit Direction
Transmit 0x13,0x19
Transmit 0x13,0x99
Transmit 0x11,0x19
Transmit 0x11,0x99
Transmit 0x11,0x13
Transmit 0x13,0x11
closing HDLC flag.
Transmit an Abort
not applicable
not applicable
not applicable
not applicable
not applicable
not supported
Detected a non-flag to flag transition. Preceding data was a valid
frame. If +ESA[E]=1, sent FCS matches that of the calculated
CRC.
Detected a non-flag to flag transition. Preceding data is not a
valid frame.
Detected Transmit Data Underrun
Detected Transmit Data Overrun
Detected Receive Data Overrun
not applicable
<octnum0><octnum1> specifies number of octets in the transmit
data buffer if +ITF[C] is non-zero
<octnum0><octnum1> specifies number of discarded octets fol-
lowing a data overrun/underrun, after the <EM><resume> com-
mand. This is applicable if +ESA[C] = 1
Loss of carrier detected, return to command mode
Confirmation of Escape to On-Line command mode.
Indicate rate renegotiation
Retrain/Rate Reneg completed, following octets <tx><rx> indi-
cate tx and rx rates.
Rev. 0.9
Abort Detected in Framed Submode
Received two 0x19 bytes
Received two 0x99 bytes
Received two 0x11 bytes
Received two 0x13 bytes
Received one 0x19 byte
Received one 0x99 byte
Received one 0x11 byte
Received one 0x13 byte
Received 0x19, 0x99
Received 0x19, 0x13
Received 0x99, 0x19
Received 0x99, 0x13
Received 0x19, 0x11
Received 0x99, 0x11
Received 0x11,0x19
Received 0x11,0x99
Received 0x11,0x13
Received 0x13,0x19
Received 0x13,0x99
Received 0x13,0x11
Receive Direction
0x2B - 26.4 kbps
0x2C - 28.8 kbps
0x2D - 31.2 kbps
0x2E - 33.6 kbps
0x27 - 16.8 kbps
0x28 - 19.2 kbps
0x29 - 21.6 kbps
0x20 - 1200 bps
0x21 - 2400 bps
0x22 - 4800 bps
0x23 - 7200 bps
0x24 - 9600 bps
0x26 14.4 kbps
0x2A - 24 kbps
0x25 - 12 kbps
2
.
2.
Supported in
Transparent
Submode
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
1
1
1
1
AN93
Framed Submode
Yes, Receive Only
Supported in
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
1
1
1
1
25