SI2400-BSR Silicon Laboratories Inc, SI2400-BSR Datasheet - Page 46

• Manufacturer Part Number: SI2400-BSR
• Description: Telecom Line Management ICs CONTACT SILICON LABS FOR AVAILABILITY
• Manufacturer: Silicon Laboratories Inc
• Type: Integrated Global DAAr

Specifications of SI2400-BSR

• Product: Modem Chip
• Supply Voltage (min): 3 V
• Supply Current: 21 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Si2400
46
Notes:
Register
SDB
S3A
S3B
S3C
SD1
1. These registers are explained in detail in the following section.
2. The ring detector will only detect ringing if the ring burst on/off times meet the settings in MNRP, MXRP, MNRU, ROT,
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
S62
S82
S83
“S”
and REP.
Register
Address
0xDB
(hex)
0x3C
0xD1
0x36
0x37
0x39
0x3A
0x3B
0x30
0x31
0x32
0x33
0x34
0x35
0x38
0x62
0x82
0x83
MDMO
SKDTL
OCDT
Name
FCDH
RSOL
ARM2
RATL
TASL
CIDG
DCID
LVCS
CDR
INTS
CDT
ATD
IST
RC
RP
Table 27. S-Register Summary (Continued)
Function
FSK connection delay high. Amount of time delay added
between end of answer tone handshake and actual modem con-
nection for FSK modem connections (256 5/3 ms units).
Receive answer tone length. Minimum length of time required
for detection of a CCITT answer tone (5/3 ms units).
The time after going off hook when the loop current sense bits
are checked for overcurrent status (5/3 ms units).
This is a bit mapped register.
Answer tone length when answering a call (5/3 ms units). This
register is only used if TATL (1E) has a value of zero.
Receive scrambled ones V.22 length (5/3 ms units). Minimum
length of time that an originating V.22 (1200 bps) modem must
detect 1200 bps scrambled ones during a V.22 handshake.
Second kissoff tone detector length. The security modes A1 and
!1 will echo a “k” if a kissoff tone longer than the value stored in
SKDTL is detected (10 ms units.) In the !7 security mode, this
register represents a bit-mapped register.
Carrier detect return. Minimum length of time that a carrier must
return and be detected in order to be recognized after a carrier
loss is detected
(5/3 ms units).
This is a bit-mapped register.
Carrier detect timeout. Amount of time modem will wait for carrier
detect before aborting call (1 second units). In the !7 alarm
mode, this register functions as Handshake Tone Timeout, which
defines how long the Si2400 waits for a handshake prior to send-
ing the “N” result code.
Delay between going off-hook and answer tone generation when
in answer mode (53.33 ms units).
Minimum number of consecutive ring pulses per ring burst.
This is a bit mapped register.
This is a bit mapped register.
This is a bit mapped register.
DTMF caller ID initialization.
Intrusion state.
Loop voltage (on-hook)/loop current (off-hook) register
Rev. 1.3
1
1
1
1
1
Reset
0x3C
0x0C
0x5A
0xA2
0x3C
0x00
0x80
0x30
0x20
0x38
0x29
0x03
0x04
0x00
0x00
0x00
0x00
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