DS21FT42 Maxim Integrated Products, DS21FT42 Datasheet - Page 44

• Manufacturer Part Number: DS21FT42
• Description: IC FRAMER T1 4X3 12CH 300-BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21FT42

• Controller Type: T1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 225mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 300-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

RIR2: RECEIVE INFORMATION REGISTER 2 (Address=31 Hex)
RIR3: RECEIVE INFORMATION REGISTER 3 (Address=10 Hex)
RLOSC
(MSB)
(MSB)
SYMBOL
SYMBOL
SYMBOL
RAIS-CI
–
RLOSC
TSLIP
RPDV
TPDV
LORC
RCLC
RBLC
TESF
TESE
FBE
–
–
–
–
–
–
RCLC
–
POSITION
POSITION
POSITION
RIR1.0
RIR2.7
RIR2.6
RIR2.5
RIR2.4
RIR2.3
RIR2.2
RIR2.1
RIR2.0
RIR3.7
RIR3.6
RIR3.5
RIR3.4
RIR3.3
RIR3.2
RIR3.1
RIR3.0
TESF
–
NAME AND DESCRIPTION
NAME AND DESCRIPTION
NAME AND DESCRIPTION
Frame Bit Error. Set when a Ft (D4) or FPS (ESF) framing
bit is received in error.
Receive Loss of Sync Clear. Set when the framer achieves
synchronization; will remain set until read.
Receive Carrier Loss Clear. Set when the carrier signal is
restored; will remain set until read. See Table 11-1.
Transmit Elastic Store Full. Set when the transmit elastic
store buffer fills and a frame is deleted.
Transmit Elastic Store Empty. Set when the transmit
elastic store buffer empties and a frame is repeated.
Transmit Elastic Store Slip Occurrence. Set when the
transmit elastic store has either repeated or deleted a frame.
Receive Blue Alarm Clear. Set when the Blue Alarm (AIS)
is no longer detected; will remain set until read. See Table
11.1
Receive Pulse Density Violation. Set when the receive data
stream does not meet the ANSI T1.403 requirements for
pulse density.
Transmit Pulse Density Violation. Set when the transmit
data stream does not meet the ANSI T1.403 requirements for
pulse density.
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Loss of Receive Clock. Set when the RCLK pin has not
transitioned for at least 2 us (3 us
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Receive AIS-CI Detect. Set when the AIS-CI pattern is
detected.
LORC
TESE
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TSLIP
–
RBLC
–
1 us).
RPDV
–
RAIS-CI
(LSB)
TPDV
(LSB)