DS21Q42T Maxim Integrated Products, DS21Q42T Datasheet - Page 40

• Manufacturer Part Number: DS21Q42T
• Description: IC FRAMER ENHANCED T1 4X 128TQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q42T

• Controller Type: T1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• 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
-
RAIS-CI
RLOSC
RCLC
TSLIP
RBLC
RPDV
TPDV
LORC
TESF
TESE
–
–
–
–
–
–
RCLC
-
POSITION
POSITION
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
-
LORC
TESE
NAME AND DESCRIPTION
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 7-1.
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 7-
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.
NAME AND DESCRIPTION
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 ˜˜1 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.
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TSLIP
-
RBLC
-
RPDV
-
RAIS-CI
(LSB)
TPDV
(LSB)