NLXT914PE.B3 Cortina Systems Inc, NLXT914PE.B3 Datasheet
NLXT914PE.B3
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NLXT914PE.B3 Summary of contents
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Intel LXT914 Flexible Quad Ethernet Repeater ® The Intel LXT914 Flexible Quad Ethernet Repeater (called hereafter the LXT914 Repeater integrated multi-port repeater designed for mixed-media networks. It provides all the active circuitry required for the repeater function ...
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Legal Lines and Disclaimers INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS ...
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Contents 1.0 LXT914 Pin Assignments and Signal Descriptions....................................................................7 2.0 Functional Description................................................................................................................ 14 2.1 Introduction ......................................................................................................................... 14 2.2 External Interfaces .............................................................................................................. 14 2.2.1 10BASE-T Ports .................................................................................................... 14 2.2.2 AUI Port ................................................................................................................. 14 2.2.3 Serial Port .............................................................................................................. 14 2.2.4 Inter-Repeater Backplane ...................................................................................... ...
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Intel LXT914 Flexible Quad Ethernet Repeater Figures 1 Block Diagram .............................................................................................................................. 7 2 Pin Assignments ........................................................................................................................... 8 3 Global State Machine ................................................................................................................. 17 4 Partitioning State Machine.......................................................................................................... 18 5 Integrated LED Driver Indications............................................................................................... 26 6 12-Port Application Schematic, 68-Pin ...
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Switching Characteristics............................................................................................................ 37 27 Serial Port Timing—External Mode ............................................................................................37 28 Inter-Repeater Bus Timing.......................................................................................................... 38 29 Product Ordering Information ..................................................................................................... 44 Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet ...
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Intel LXT914 Flexible Quad Ethernet Repeater Revision History Date Revision • Added 31-Oct-2005 003 • Added Information” on page 44 • Added Layout Requirements section under Application Information. Feb 2001 002 • Modified I/O Electrical Characteristics table: Change Max ...
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LXT914 Pin Assignments and Signal Descriptions Figure 1. Block Diagram FPS/SECAUI LOC/EXT A/SYNC DOP DON DIP DIN 4 DO/ DO/ DO/DI F DOP DON DIP (Mode selectable DIN CIP CIN AUISEL* Datasheet Intel Twisted-Pair Control ...
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Intel LXT914 Flexible Quad Ethernet Repeater Figure 2. Pin Assignments 31-Oct-2005 8 Part # LXT914PC/PE XX FPO # XXXXXXXX BSMC Part # FPO # XXXXXXXX BSMC ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Rev ...
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Table 1. Power, Ground, and Clock Signal Descriptions Pin # Symbol PLCC PQFP 1 27 VCC1 2 61 VCC2 3 62 VCC3 26 69 VCC4 49 70 VCC5 55 88 VCC6 67 89 VCC7 68 90 VCC8 — 91 VCC9 ...
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Intel LXT914 Flexible Quad Ethernet Repeater Table 2. Inter-Repeater Backplane Signal Descriptions PLCC PQFP Symbol 4 94 IRENA 5 95 IRDAT 6 96 IRDEN 7 97 IRCFS 8 98 IRCOL NOTES: 1. IRENA and IRDAT can be buffered between ...
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Table 4. Serial Port Signal Descriptions (External Management Mode) PLCC PQFP Symbol 14 11 SENI 15 12 SENO 16 13 SDI 17 14 SDO 18 16 SCLK Table 5. Serial Port Signal Descriptions (Local Management Mode) PLCC PQFP Symbol CS ...
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Intel LXT914 Flexible Quad Ethernet Repeater Table 6. Miscellaneous Control Signal Descriptions PLCC PQFP Symbol 19 18 TEST 20 19 RESET DSQE (Local SECTP1 (External) 22 SECTP2 22 23 SECTP3 23 24 SECTP4 24 (External) FPS (Local) ...
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Table 8. Repeater Port Signal Descriptions PLCC PQFP Symbol 40 46 AUIDOP 41 47 AUIDON 42 48 AUIDIP 43 49 AUIDIN 44 54 AUICIP 45 55 AUICIN 56 71 TPDOP1 57 72 TPDON1 54 68 TPDOP2 53 67 TPDON2 50 ...
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Intel LXT914 Flexible Quad Ethernet Repeater 2.0 Functional Description 2.1 Introduction The LXT914 Repeater is an integrated hub repeater for 10BASE-T networks. The hub repeater is the central point for information transfer across the network. The LXT914 Repeater offers ...
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The Local mode is intended for use with a simple EEPROM, but the serial port may be tied Low if an EEPROM is not required. In the ...
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Intel LXT914 Flexible Quad Ethernet Repeater The shared functional blocks of the LXT914 Repeater are controlled by the global state machine (Figure 3). This diagram and all associated notations used are in strict accordance with section 9.6 of the ...
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Syncs to the 1 MHz Serial Clock (SCLK) input. SCLK is supplied by the First Position repeater. 2. Responds to SENI Low by enabling the SDI port. 3. Clocks 48 bits from the EEPROM into its setup register through ...
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Intel LXT914 Flexible Quad Ethernet Repeater Figure 4. Partitioning State Machine PARTITION WAIT Datain( Collin(X) = SQE DIPresent( *CIPresent(X) = SQE PARTITION HOLD Datain( Collin(X) = SQE DIPresent( CIPresent(X) = ...
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Table 9. Setup Register Bit Assignments Register D7 SR(0) DISLI3 SR(1) DISTX2 SR(2) ERSQ1 SR(3) DFIFOE SR(4) RES SR(5) RES Table 10. Setup Register Bit Definitions Bit DISAPx 1 = Disable Auto-Partitioning on Port x DISLIx 1 = Disable Link ...
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Intel LXT914 Flexible Quad Ethernet Repeater Table 11. Packet Status Register Bit Assignments Register D7 PSR(0) COL2 PSR(1) PR2 PSR(2) SPA PSR(3) LP3 PSR(4) RXJABA PSR(5) RES Table 12. Packet Status Register Bit Definitions 1 Bit RXx Received Packet ...
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Programmable Internal Squelch Level The 10BASE-T port receivers have two squelch levels: a normal level or default setting and a reduced level squelch (-4.5 dB) selected when the ERSQx is set in the Setup register. When used with Low ...
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Intel LXT914 Flexible Quad Ethernet Repeater 2.6 AUI Port Operation 2.6.1 AUI Reception The LXT914 Repeater AUI port receiver acquires data packets from the network (AUIDIP/ AUIDIN). Only valid data streams above the squelch level activate the receive function. ...
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Collision Handling A collision occurs when two or more repeater ports receive simultaneously, or when the AUI CIP/ CIN signal is active. The LXT914 Repeater fully complies with the IEEE 802.3 collision specifications, both in individual and multi-repeater applications. ...
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Intel LXT914 Flexible Quad Ethernet Repeater Table 14. LED Mode Selection PLCC pin PQFP pin Note: 1. This mode is not available when using the LEDJM/AUISEL pin to select a MAU interface in the AUI port. In this case, ...
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Table 17. Mode 2 LED Truth Table Condition LEDTP 1– Link Pulse 2 Partitioned Out Packet 5 Table 18. Mode 3 LED Truth Table Condition LEDTP 1– Link Pulse 2 Rx Packet 3 ...
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Intel LXT914 Flexible Quad Ethernet Repeater Figure 5. Integrated LED Driver Indications 2 mA Operation LXT914 LED Driver Condition 1: Steady Green 4 ms Condition 2: Blinking Green 4 ms Condition 3: Steady Red Condition ...
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Application Information 3.1 Layout Requirements 3.1.1 The Twisted Pair Interface The four, twisted-pair output circuits are identical. Each TPDOP/TPDON signal has a 24.9 Ω, 1%, series resistor and a 120pF capacitor differentially across the positive and negative outputs. These ...
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Intel LXT914 Flexible Quad Ethernet Repeater Figure 7 (Sheet 2) shows a second LXT914 Repeater hub repeater with four TP ports and a coaxial port. The MD-001 coax transceiver is used to implement the port. third LXT914 Repeater device ...
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Figure 6. 12-Port Application Schematic, 68-Pin PLCC Package (Sheet Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater 31-Oct-2005 29 ...
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Intel LXT914 Flexible Quad Ethernet Repeater Figure 7. 12-Port Application Schematic, 68-Pin PLCC Package (Sheet 31-Oct-2005 30 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Datasheet ...
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Figure 8. 12-Port Application Schematic, 68-Pin PLCC Package (Sheet Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater 31-Oct-2005 31 ...
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Intel LXT914 Flexible Quad Ethernet Repeater Figure 9. 12-Port Application Schematic, 68-Pin PLCC Package (Sheet 31-Oct-2005 32 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Datasheet ...
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Figure 10. 8-Port Application Schematic, LED Mode 1 with AUISEL = MAU (Sheet Datasheet Intel ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater 31-Oct-2005 33 ...
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Intel LXT914 Flexible Quad Ethernet Repeater Figure 11. 8-Port Application Schematic, LED Mode 1 with AUISEL = MAU (Sheet 31-Oct-2005 34 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 Datasheet ...
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Test Specifications Note: Table 20 through Table 28 the LXT914. These specifications are guaranteed by test except where noted “by design.” Minimum and maximum values listed in operating conditions specified in Table 20. Absolute Maximum Ratings Supply voltage Operating ...
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Intel LXT914 Flexible Quad Ethernet Repeater Table 22. I/O Electrical Characteristics Parameter Input Low current Output rise / fall time RESET pulse width RESET fall time NOTES: 1. Not applicable to IRB signals. IRB electrical characteristics are specified in ...
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Table 25. IRB Electrical Characteristics Parameter Output Low voltage Output rise or fall time Input Low voltage: IRENA, IRCOL & IRDAT Input High voltage: IRENA, IRCOL & IRDAT Input Low voltage: BCLKIO Input High voltage: BCLKIO Note: 1. Typical values ...
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Intel LXT914 Flexible Quad Ethernet Repeater Figure 12. Serial Port Timing SCLKIO RESET t SENI t SDIN SENO SDOUT Table 28. Inter-Repeater Bus Timing Parameter Start of Frame to IRDEN Low (active) Start of Frame to IRENA Low (active) ...
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Figure 13. Inter-Repeater Bus Timing Rx DATA TPs AUI t IRB1 IRDEN t IRENA IRDAT BCLKIO Datasheet Intel t IRB4 t IRB5 IRB2 t IRB3 ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible ...
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Intel LXT914 Flexible Quad Ethernet Repeater 5.0 Package Specifications Figure 14. LXT914PC/PE Package Specifications Part Number LXT914PC for Commercial Temperature Range (0°C to +70°C) Part Number LXT914PE for Extended Temperature Range (-40°C to +85°C) Dim Inches Min Max A ...
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Figure 15. LXT914QC Package Specifications Part Number LXT914QC Commercial Temperature Range (0 ° +70 ° C) Dim Inches Min Max A – 0.134 A1 0.010 – A2 0.100 0.120 B 0.009 0.015 D 0.931 0.951 D1 0.783 0.791 ...
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Intel LXT914 Flexible Quad Ethernet Repeater 5.1 Top-Label Marking Figure 16 shows a sample PLCC package for the LXT914 Repeater. Note: In contrast to the Pb-Free (RoHS-compliant) PLCC packages, the non-RoHS-compliant packages do not have the “e3” symbol in ...
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Figure 18 shows a sample PQFP package for the LXT914 Repeater. Note: In contrast to the Pb-Free (RoHS-compliant) PQFP packages, the non-RoHS-compliant packages do not have the “e3” symbol in the last line of the package label. Figure 18. Sample ...
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... Intel LXT914 Flexible Quad Ethernet Repeater 6.0 Product Ordering Information Figure 29 and Figure 20 Table 29. Product Ordering Information Number NLXT914PC.B3 EELXT914PC.B3 NLXT914PE.B3 EELXT914PE.B3 SLXT914QC.B3 EGLXT914QC.B3 31-Oct-2005 44 provide IXF1110 MAC product ordering information. Revision Package Type B3 PLCC B3 PLCC B3 PLCC B3 PLCC B3 PQFP B3 PQFP ® ...
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Figure 20. Ordering Information Matrix – Sample N Datasheet Intel LXT 914 § § ® Intel LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 ® LXT914 Flexible Quad Ethernet Repeater Product Revision ...