SI3019-F-FT Silicon Laboratories Inc, SI3019-F-FT Datasheet - Page 57

• Manufacturer Part Number: SI3019-F-FT
• Description: IC VOICE DAA GCI/PCM/SPI 16TSSOP
• Manufacturer: Silicon Laboratories Inc
• Type: Chipsetr

Specifications of SI3019-F-FT

• Package / Case: 16-TSSOP
• Function: Data Access Arrangement (DAA)
• Interface: GCI, PCM, SPI
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 8.5mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Includes: Line Voltage Monitor, Loop Current Monitor, Overload Detection, Parallel Handset Detection, Polarity Reversal Detection, TIP and
• Product: Modem Chip
• Supply Voltage (min): 3 V
• Supply Current: 8.5 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

5.45. Receive SC Channel
:
These bits are defined as follows:
CIR6: Reserved
CIR5: Reserved
CIR4: ONHM
CIR3: TGDE
CIR2: RG
CIR1: OH
Data that is received must be consistent and match for
at least two consecutive frames to be considered valid.
When a new command or status is communicated via
the C/I bits, the data must be sent for at least two
consecutive frames to be recognized by the Si3050.
The following steps describe the protocol of how C/I bits
are stored, detected, and validated. This is illustrated in
Figure 47.
1. The current state of the C/I bits are stored in a
2. Upon receipt of an SC channel with C/I bits that differ
3. The C/I bits in the SC channel received in the frame
MSB
primary register P. If the received C/I bits are
identical to this current state, no action is taken.
from the current state, these new C/I bits are
immediately latched into a secondary register S.
immediately after the SC channel just stored in S are
compared with the C/I bits in the S register.
a. If the C/I bits in these two channels are identical,
b. If a set of C/I bits is latched into the S register
c. If the C/I bits in the SC channel received
then the C/I bits in the S register are loaded into
the P register and are considered a valid change
of C/I bits. The Si3050 then responds accordingly
to the changed C/I bits.
and the subsequent set of C/I bits received does
not match either the S or P registers, then the
newly received set of C/I bits are latched into the
S register. This continues to occur as long as the
subsequent set of C/I bits received differs from
the C/I bits in the S and P registers.
immediately after the SC channel just stored in S
do not match the C/I bits stored in S, but DO
match the C/I bits stored in P, then the single set
of C/I bits stored in the S latch are invalidated,
and the current state of the C/I bits in P remains
unchanged.
CIR6
7
CIR5
6
CIR4
5
CIR3
4
Rev. 1.2
C/I Bits
CIR2
3
CIR1
2
MR
1
Si3050
MX
0
LSB
57