MICROCIRCUIT DATA SHEET Original Creation Date: 10/24/94 Last Update Date: 02/24/99 Last Major Revision Date: 10/24/94 MNDP83950B-VQB REV 0B0 REPEATER INTERFACE CONTROLLER General Description The "RIC" may be used to implement an IEEE 802.3 multiport repeater unit including the functions defined by the repeater, segment partition, and jabber lockup protection state machines. The RIC has an on-chip phase-locked-loop (PLL) for Manchester data decoding, a Manchester encoder, and an Elasticity Buffer for preamble regeneration. Each RIC can connect to 13 cable segments via its network interface ports. One port is fully AUI compatible and is able to connect to an external MAU using the maximum lenght of AUI cable. The other 12 ports have integrated 10BASE-T transceivers. These transceiver functions may be bypassed so that the RIC may be used with external transceivers. In addition, large repeater units, containing several hundred ports may be constructed by cascading RICs together over an Inter-RIC bus. The RIC is configurable for specific applications. It provides port status information for LED array displays and a simple interface for system processors. The RIC posseses multi-function counter and status flag arrays to facilitate network statistics gathering. A serial interface, known as the Management Interface is available for the collection of data in Managed Hub applications. Industry Part Number NS Part Numbers DP83950BVQB DP83950BVQB-MPC Prime Die DP63950 Processing Subgrp Description (blank) 1 2 3 4 5 6 7 8A 8B 9 10 11 Quality Conformance Inspection (blank) 1 Static tests at Static tests at Static tests at Dynamic tests at Dynamic tests at Dynamic tests at Functional tests at Functional tests at Functional tests at Switching tests at Switching tests at Switching tests at Temp ( oC) +25 +85 -40 +25 +85 -40 +25 +85 -40 +25 +85 -40 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 Features - Compliant with the IEEE 802.3 Repeater Specification - 13 network connections (ports) per chip - Selectable on-chip twisted-pair transceivers - Cascadable for large hub applications - Compatible with AUI compliant transceivers - On-chip Elasticity Buffer, Manchester encoder and decoder - Separate partition state machines for each port - Provides port status information for LED displays including: receive, collision, partition and link status - Power-up configuration options: Repeater and Partition Specifications, Transceiver interface, Status Display, Processor Operations - Simple processor interface for repeater management and port disable - On-chip Event Counters and Event Flag Arrays - Serial Management Interface to combine packet and repeater status information together - CMOS process for low power dissipation - Single 5V supply 2 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 (Absolute Maximum Ratings) Supply Voltage(Vcc) -0.3V to 7.0V DC Input Voltage(Vin) -0.3V to Vcc +0.3V DC Output Voltage(Vout) -0.3V to Vcc +0.3V Storage Temperature(Tstg) -40 C to +150 C Power Dissipation(Pd) 2W Lead Temperature(Tl) (Soldering, 10 seconds) 260 C Recommended Operating Conditions Vcc Supply Voltage 4.75V min 3 5.25V max MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 Electrical Characteristics DC: PROCESSOR,LED,TWISTED PAIR,INTER-RIC & MGMT. INTERFACES (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Vcc = 5V +5% SYMBOL PARAMETER CONDITIONS NOTES Voh Minimum High Level Output Voltage Ioh = -8mA Vol Minimum Low Level Output Voltage Iol = 8mA Vih Minimum High Level Input Voltage Vil Maximum Low Level Input Voltage Iin Input Current Vin = Vcc OR GND Ioz Maximum TRI-STATE Output Leakage Current Vout = Vcc or GND Icc Average Supply Current Vin = Vcc or GND, Vcc = 5.25V PINNAME MIN MAX 3.5 UNIT SUBGROUPS V 1, 2, 3 V 1, 2, 3 V 1, 2, 3 0.8 V 1, 2, 3 -1.0 1.0 uA 1, 2, 3 -10 10 uA 1, 2, 3 380 mA 1, 2, 3 0.4 2.0 DC PARAMETERS: AUI (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Vcc = 5V +5% Vod Differential Output Voltage(TX+) Vds Differential Squelch Threshold (RX+, CD+) 78 Ohms Termination and 270 Ohms Pulldowns PORT 1 +550 +1200 mV 1, 2, 3 3, 5 PORT 1 -175 -300 mV 1, 2, 3 DC PARAMETERS: PSEUDO AUI (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Vcc = 5V +5% Vpod Differential Output Voltage (TX+) Vpds Differential Squelch Threshold (RX+, CD+) 270 Ohms Termination and 1K Ohm Pulldowns 4 3, 5 PORTS 2-13 +450 +1200 mV 1, 2, 3 3, 5 PORTS 2-13 -175 -300 mV 1, 2, 3 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 Electrical Characteristics DC PARAMETERS: TWISTED PAIR (The following conditions apply to all the following parameters, unless otherwise specified.) DC: Vcc = 5V +5% SYMBOL Vron PARAMETER Minimum Squelch Threshold CONDITIONS NOTES PINNAME Normal Mode PORTS 2-13 Reduced Mode PORTS 2-13 UNIT SUBGROUPS MIN MAX +300 +585 mV 1, 2, 3 +340 mV 1, 2, 3 AC PARAMETERS (The following conditions apply to all the following parameters, unless otherwise specified.) AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V T1 ACKI low to ACKO Low 2, 3 24 nS 9, 10, 11 T2 ACKI High to ACKO High 2, 3 21 nS 9, 10, 11 T3a RX Active to ACKO Low 3, 4 AUI & PSEUDO AUI 66 nS 9, 10, 11 T4a RX Inactive to ACKO High 3, 4 AUI & PSEUDO AUI 325 nS 9, 10, 11 T5a RX Active to ACTNd Active 3, 4 AUI & PSEUDO AUI 105 nS 9, 10, 11 T6a RX Inactive to ACTNd Inactive 3, 4 AUI & PSEUDO AUI 325 nS 9, 10, 11 T3t RX Active to ACKO Low 4 TWISTED PAIR ONLY 240 nS 9, 10, 11 T4t RX Inactive to ACKO High 4 TWISTED PAIR ONLY 255 nS 9, 10, 11 T5t RX Active to ACTNd Active 4 TWISTED PAIR ONLY 270 nS 9, 10, 11 T6t RX Inactive to ACTNd Inactive 4 TWISTED PAIR ONLY 265 nS 9, 10, 11 T15a ACTNd Active to TX Active 3, AUI & 4, 5 PSEUDO AUI 585 nS 9, 10, 11 T15t ACTNd Active to TX Active 4, 5 TWISTED PAIR ONLY 790 nS 9, 10, 11 5 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 Electrical Characteristics AC PARAMETERS(Continued) (The following conditions apply to all the following parameters, unless otherwise specified.) AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V SYMBOL PARAMETER CONDITIONS NOTES PINNAME MIN AUI & PSEUDO AUI UNIT SUBGROUPS 65 nS 9, 10, 11 MAX T30a CD Active to ANYXN Active 3 T31a CD Inactive to ANYXN Inactive 3, AUI & 6, 7 PSEUDO AUI 400 nS 9, 10, 11 T32a CD Active to COLN Active 3, 8 AUI & PSEUDO AUI 55 nS 9, 10, 11 T33a CD Inactive to COLN Inactive 3 215 nS 9, 10, 11 T39 COLN Active to Start of JAM 3 400 nS 9, 10, 11 T40 COLN Inactive to End of JAM 3, 9 800 nS 9, 10, 11 T30t Collision Active to ANYXN Active 3 TWISTED PAIR ONLY 800 nS 9, 10, 11 T31t Collision Inactive to ANYXN Inactive 3, 6 TWISTED PAIR ONLY 400 nS 9, 10, 11 T34 ANYXN Active Time 96 T35 ANYXN Inactive to TX to all inactive 120 T38 ANTXN Active to Start of Jam T36 ACTN Inactive to TX Inactive 3 T37 ANYXN Inactive to TX "One Port Left" Inactive 3 T101 IRC Output High Time T102 AUI & PSEUDO AUI Bits 9, 10, 11 180 nS 9, 10, 11 400 nS 9, 10, 11 415 nS 9, 10, 11 120 180 nS 9, 10, 11 3, 10 45 55 nS 9, 10, 11 IRC Output Low Time 3, 10 45 55 nS 9, 10, 11 T103 IRC Output Cycle Time 3, 10 90 110 nS 9, 10, 11 T104 ACTNd Active to PKEN Active 3, 10 555 nS 9, 10, 11 6 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 Electrical Characteristics AC PARAMETERS(Continued) (The following conditions apply to all the following parameters, unless otherwise specified.) AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V SYMBOL PARAMETER CONDITIONS NOTES PINNAME MIN MAX SUBGROUPS nS 9, 10, 11 T105 ACTNd Active to IRE Active 3, 10 T106 IRE Output Active to IRC Active 3, 10 1.8 uS 9, 10, 11 T107 IRD Output Valid from IRC 3, 10 10 nS 9, 10, 11 T108 IRD Output Stable Valid Time 3, 10 75 nS 9, 10, 11 T109 IRC Output High to IRE Inactive 3, 10 30 nS 9, 10, 11 T110 Number of IRCs after IRE Inactive 3, 10 5 Clks 9, 10, 11 T111 IRC Input High Time 3 20 nS 9, 10, 11 T112 IRC Input Low Time 3 20 nS 9, 10, 11 T114 IRD Input Setup to IRC 3 5 nS 9, 10, 11 T115 IRD Input Hold from IRC 3 10 nS 9, 10, 11 T116 IRC Input High to IRE Inactive 3 10 90 nS 9, 10, 11 T50 MRXC High Time 3, 11 45 55 nS 9, 10, 11 T51 MRXC Low Time 3, 11 45 55 nS 9, 10, 11 T52 MRXC Cycle Time 3, 11 90 110 nS 9, 10, 11 T53 ACTNd Active to MEN Active 3, 11 725 nS 9, 10, 11 T54 ACTNd Active to MCRS Active 3, 11 730 nS 9, 10, 11 T55 MRXD Setup 3, 11 35 nS 9, 10, 11 T56 MRXD Hold 3, 11 40 nS 9, 10, 11 T57 MRXC Low to MCRS Inactive 3, 11 -5 6 nS 9, 10, 11 T58 MCRS Inactive to MEN Low 3, 11 510 nS 9, 10, 11 7 560 UNIT 70 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 Electrical Characteristics AC PARAMETERS(Continued) (The following conditions apply to all the following parameters, unless otherwise specified.) AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V SYMBOL PARAMETER CONDITIONS NOTES PINNAME MIN MAX SUBGROUPS T59 Min Number of MRXCs after MCRS Inactive 3, 11 5 T60 PCOMP Pulse Width 3, 11 20 nS 9, 10, 11 T61 Data Setup 10 nS 9, 10, 11 T62 Data Hold 10 nS 9, 10, 11 T63 MLOAD Active to BUFEN Active 35 nS 9, 10, 11 T64 MLOAD Inactive to BUFEN Inactive 35 nS 9, 10, 11 T65 MLOAD Width 800 nS 9, 10, 11 T66 Strobe Address Setup 80 115 nS 9, 10, 11 T67 Strobe Data Setup 35 65 nS 9, 10, 11 T68 Strobe Data Hold 135 165 nS 9, 10, 11 T69 Strobe Width 30 65 nS 9, 10, 11 T70 CDEC Pulse Width 20 100 nS 9, 10, 11 T71 CDEC to CDEC Width 200 nS 9, 10, 11 T80 Read Address Setup 12 0 nS 9, 10, 11 T81 Read Address Hold 12 0 nS 9, 10, 11 T82 Read Active to BUFEN Active 12 95 345 nS 9, 10, 11 T83 Read Inactive to BUFEN Inactive 12 35 nS 9, 10, 11 T84 Read Active to Data Invalid 12 245 nS 9, 10, 11 T85 Read Data Hold 12 75 nS 9, 10, 11 T86 Read Active to RDY Active 12 340 nS 9, 10, 11 8 5 UNIT 585 Clks 9, 10, 11 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 Electrical Characteristics AC PARAMETERS(Continued) (The following conditions apply to all the following parameters, unless otherwise specified.) AC: Vcc = 5V +5%, Cl = 50pF, Vil(TTL) = 0V, Vih(TTL) = 3V SYMBOL PARAMETER CONDITIONS NOTES PINNAME MIN MAX SUBGROUPS nS 9, 10, 11 T87 Read Inactive to RDY Inactive 12 T88 Read Width 12 600 nS 9, 10, 11 T90 Write Address Setup 12, 13, 14, 15 0 nS 9, 10, 11 T91 Write Address Hold 12, 13, 14, 15 0 nS 9, 10, 11 T92 Write Active to BUFEN Active 12, 13, 14, 15 95 355 nS 9, 10, 11 T93 Write Inactive to BUFEN Inactive 12, 13, 14, 15 35 nS 9, 10, 11 T94 Write Active to Data Valid 12, 13, 14, 15 275 nS 9, 10, 11 T95 Write Data Hold 12, 13, 14, 15 0 nS 9, 10, 11 T96 Write Active to RDY Active 12, 13, 14, 15 340 585 nS 9, 10, 11 T97 Write Inactive to RDY Inactive 12, 13, 14, 15 30 nS 9, 10, 11 T98 Write Width 12, 13, 14, 15 nS 9, 10, 11 T99 Write Active to Data TRI-STATE 12, 13, 14, 15 nS 9, 10, 11 Note 1: Note 2: Note 3: Note 4: 30 UNIT 600 350 The operation in Reduced Mode is not guaranteed below 300 mV. Timing Valid with no receive or collision activities The Inter-RIC and Management Busses use active high signals, active low signals may also be used. ACKI assumed high 9 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 (Continued) Note 5: Note 6: ACTNd and ACTNs are tied together TX collision extension has already been performed and no other port is driving ANYXN. Note 7: Note 8: Note 9: Includes TW2 PKEN assumed high Assuming reception ended before COLN goes inactive. TW2 is included in this parameter. Assuming ACTNd to ACTNs delay is 0. In a Multi-RIC system, the PKEN signal is valid only for the first receiving RIC. The preamble on this bus consists of the following string: 01011 Minimum high time between read/write cycles is 100nS. Assuming zero propagation delay on external buffer. The data will always TRI-STATE before BUFEN goes active with a load of 100pF on the data bus. When RDY is used, the minimum 600nS write width does not have to be maintained. Note Note Note Note Note 10: 11: 12: 13: 14: Note 15: 10 MNDP83950B-VQB REV 0B0 Burn-in/QCI Electrical End-Point Tests OP# Operation description Sub-Groups 01 Post Burn-In PDA 10% 1,7,9 02 Final Electrical 1,2,3,7,8A,8B,9,10,11 03 Group A 1,2,3,7,8A,8B,9,10,11 04 Subgroup B-4 (For Initial Qual ONLY) 1,7,9 05 Subgroup C-1 (For Initial Qual ONLY) 1,2,3,7,8A,8B,9,10,11 06 Subgroup C-2 (For Initial Qual ONLY) 1,7,9 07 Subgroup D-2 (For Initial Qual ONLY) 1,7,9 08 Subgroup D-3 (For Initial Qual ONLY) 1,2,7,8A,9,10 09 Subgroup D-4 (For Initial Qual ONLY) 1,2,7,8A,9,10 11 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 Graphics and Diagrams GRAPHICS# VUL160ARB DESCRIPTION PQFP, JEDEC METRIC, 28x28x3.4MM, 160LD (P/P DWG) See attached graphics following this page. 12 MICROCIRCUIT DATA SHEET MNDP83950B-VQB REV 0B0 Revision History Rev ECN # 0B0 M0003282 02/24/99 Rel Date Originator Changes Rose Malone Update MDS: MNDP83950B-VQB, Rev. 0A0 to MNDP83950B-VQB, Rev. 0B0. 13