DS2282/87-22282-000 Maxim Integrated, DS2282/87-22282-000 Datasheet
DS2282/87-22282-000
Specifications of DS2282/87-22282-000
Related parts for DS2282/87-22282-000
DS2282/87-22282-000 Summary of contents
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FEATURES Fully implements the FDL message format as de- scribed in the ANSI document T1.403–1989 Fully implements the maintenance message protocol described in AT&T TR 54016 (1986/89) Provides high–level monitor counts, namely: – Errored Seconds – Severely Errored Seconds – ...
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DS2282 OVERVIEW The DS2282 completely controls the Facility Data Link (FDL environments. It can handle the FDL re- quirements outlined in American National Standards Institute (ANSI) document T1.403–1989 or those out- lined in the AT&T publication TR 54016 ...
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MULTIPLE DS2282 CONNECTION SCHEME Figure 2 DS2282 75176 RXD LINE TXD DRVEN DE RPOS RNEG RCLK DS2282 75176 RXD LINE TXD D B #31 RE DRVEN DE RPOS RNEG RCLK ...
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DS2282 SYSTEM APPLICATION WITH DS2283 Figure 3A RTIP T1 TRANSMIT RRING AND RECEIVE TWISTED PAIRS TTIP TRING LEN0 LEN1 LEN2 TAIS LB SDO SDI SCLK CS SYSTEM APPLICATION WITH DS2180A Figure 3B RCLK RPOS RNEG TLCLK TLINK SDO SDI 3–WIRE ...
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PIN DESCRIPTION Table 1 PIN SYMBOL TYPE 1 VDD – Positive Supply. 5.0 volts. 2 RLOS O Receive Loss Of Sync. Indicates sync status; high when internal resync is in progress, low otherwise. 3 RCLK I Receive Clock. 1.544 MHz ...
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DS2282 PIN SYMBOL TYPE 22 NC – No Connect. Do not connect any signal to this pin. 23 GND – Ground. 0.0 volts. 24 UB5 O User Bits Each user bit can be independently configured either 25 ...
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Address Byte (MSB Extra Bit. Should always be set to one. A4 Address Bit 4. The MSB of the serial port address. A3 Address Bit 3. A2 Address Bit 2. A1 ...
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DS2282 STATUS REGISTER SUMMARY Table 2 2,3 NAME ADDR R/W CLEARABLE Yes USER REGISTER SUMMARY Table 3 2,3 NAME ADDR R/W CLEARABLE 1 UBR LOOPBACK CONTROL REGISTER SUMMARY Table 4 2,3 NAME ADDR R/W ...
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NAME ADDR R/W CLEARABLE TUMR PRMESR 1C R Yes 1 PRMSESR 1D R Yes 1 PRMER 1E R Yes 1 PAR NOTES: 1. Register is nonvolatile. 2. Values indicated in hexadecimal format. ...
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DS2282 USER REGISTER (14) The DS2282 contains a 6–bit user port (pins UB1 to UB6). An external controller can independently set or clear these user bits via the User Bit Register (UBR). The UBR is also used to select whether ...
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NAME ADDR R/W CLEARABLE UASICR BESICR SESICR CSLFICR ESDCR UEEER 36 R Yes UASDCR BESDCR SESDCR 30 R ...
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DS2282 T1.403 OPERATION In order to properly operate on T1 lines running the FDL under the definition spelled out in the ANSI document T1.403, the DS2282 must have the 54016 bit in the UBR set to zero (see “User Register”). ...
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OOFCR: Out Of Frame Count Register (82). 16–bit register that records Out Of Frame (OOF) error events. An OOF error event occurs whenever 2 or more framing bits out the FPS are incorrect. An OOF error event ...
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DS2282 necessary data to create a PRM from both the monitor registers and from the SLIP signal. It creates the open- ing and closing flags as well as the address and control bytes. Once the PRM packet has been assembled, ...
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OPERATION In order to properly operate on T1 lines running the FDL under the definition spelled out in the AT&T Publication TR 54016, the DS2282 must have the 54016 bit in the UBR set to one (see “User Register”). ...
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DS2282 Day Count Registers The day count registers count the number of events that have occurred in the previous 24 hour period. There are five separate day count registers. They are: ESDCR (2D) counts Errored Seconds (ES) UASDCR (2E) counts ...
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Loss Of Frame Count (LOFC): A count of the number of times Loss Of Frame (LOF) has been declared. An LOF is declared by the following method. Each super- frame (3 ms) will be examined for a LOF event. If ...
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DS2282 alarm 1 = transmit an interruptable yellow alarm DLLB Disable Automatic LLB Action allow the LLB pin to act normally 1 = force the LLB pin to the value in FLLB FLLB Force LLB force ...
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ABSOLUTE MAXIMUM RATINGS* Voltage on Any Pin Relative to Ground Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the ...
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DS2282 AC ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL RCLK Period t P RCLK Pulse Width RPOS, RNEG Setup to RCLK t SD Falling RPOS, RNEG Hold from RCLK t HD Falling Propagation Delay from TLCLK t PD ...
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AC TIMING DIAGRAM Figure 5 RCLK RPOS, RNEG TLCLK TLINK RST t RST SLIP 022798 21/22 DS2282 ...
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DS2282 DS2282 T1 FDL CONTROLLER/MONITOR SIDE B SIDE PKG 30-PIN DIM MIN MAX A IN. 3.455 3.505 B IN. 3.229 3.239 C IN. 0.845 0.855 D IN. 0.395 0.405 E IN. ...