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SMSC TMC2005-JT manual

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  • Page 1

    SMSC TMC2005-JT Revision 1.1 (07-24-07) DATASHEET TMC2005-JT ARCNET 5 Port HUB Controller FEATURES  ARCNET HUB Circuit for ARCNET Protocol (Data Rate From 156.25Kbps to 10Mbps)  Able to Connect Various Transceivers Directly  Device Includes TX/RX Timing Circuit for 5 Port Hub and Direction Control Circuit, Jitter Correct Circuit and Noise [...]

  • Page 2

    ARCNET 5 Port HUB Controller Datasheet Revision 1.1 (07-24-07) Page 2 SMSC TMC2005-JT DATASHEET 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2007 SMSC or its subs idiaries. All rights reserved. Circuit diagrams and other information rela ting to SMSC products are included as a m eans of illustrating typical ap[...]

  • Page 3

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 3 Revision 1.1 (07-24-07) DATASHEET TABLE OF CONTENTS FEATURES ....................................................................................................................... ........................................... 1 GENERAL DES CRIPTION ........................................[...]

  • Page 4

    ARCNET 5 Port HUB Controller Datasheet Revision 1.1 (07-24-07) Page 4 SMSC TMC2005-JT DATASHEET PIN CONFIGURATION RXI NA0 SA TXE NA0 LA MA RXI NA1 TXE NA1 VDD 6 VSS8 RXI NB0 SB TXE NB0 LB MB RXI NB1 VSS5 VSS3 AVSS AGS LP AVD D VD D3 VD D4 VSS4 XTLO XTLI VD D2 nPLLTST RXFL T R0 VSS7 nPU LSE1 nPU LSE2 nP1BAK VD D5 nC KOEN nR ST VSS6 nBJ A nBJ B nBJ E[...]

  • Page 5

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 5 Revision 1.1 (07-24-07) DATASHEET BLOCK DIAGRAM Dire c tio n Con tro l Circui t OR Circui t OR Circui t OR Circui t NOT Circuit NOT Circuit NOT Circuit NOT Circui t NOT Circui t NOT Circui t Rx Bu ffe r Outp ut Control Circ ui t Tx Pulse Ge n . DPLL AND Circuit Clock Multiplier PLL TX E [...]

  • Page 6

    ARCNET 5 Port HUB Controller Datasheet Revision 1.1 (07-24-07) Page 6 SMSC TMC2005-JT DATASHEET DESCRIPTION OF PIN FUNCTIONS PIN NO. NA ME INPUT/OUTPUT DESCRIPTION NOTE 1 TXENB1 OUTPUT Port B-1 Tx output to media transceiver 2 HM INPUT Setting for traffic release time (It should be open for normal operation.) Pull-up 3 SE INPUT Port EXT. Polar assi[...]

  • Page 7

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 7 Revision 1.1 (07-24-07) DATASHEET PIN NO. NA ME INPUT/OUTPUT DESCRIPTION NOTE 44 VDD5 Pow er Supply. 45 nP1BAK OUTPUT nPULSE1 output (for backplane mode). 46 nPULSE2 OUTPUT nPULSE2 output (for normal mode). 47 nPULSE1 OUTPUT nPULSE1 output (for normal mode) 48 VSS7 Ground 49 RXINA0 INPUT[...]

  • Page 8

    ARCNET 5 Port HUB Controller Datasheet Revision 1.1 (07-24-07) Page 8 SMSC TMC2005-JT DATASHEET FEA TURE NA ME INPUT/OUTPUT DESCRIPTION mode. The pulse is always active Low . TX Port Polarity Setup LA, LB, LE INPUT Setup the polarity of TXENA [0:1], TXENB [0:1], EXTTX. 0 : active L 1: active H TX Port Mode Setup MA, MB, ME INPUT Setup the mode of T[...]

  • Page 9

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 9 Revision 1.1 (07-24-07) DATASHEET FEA TURE NAME INPUT/ OUTPUT DESCRIPTION nPLLTST INPUT Test pin for PLL. Must alw ays connect to VDD. AVDD Analog power supply Using PLL: Analog power supply . There are some limits on PCB pattern. Using no PLL: Power supply (+5V) same as VDD1~6. AVSS Ana[...]

  • Page 10

    ARCNET 5 Port HUB Controller Datasheet Revision 1.1 (07-24-07) Page 10 SMSC TMC2005-JT DATASHEET OPERA TIONAL DESCRIPTION Direction Determination All TX ports are set to disable mode in the initial state. When a signal is received from any RX ports, the circuit holds the port on receiving mode (disable TX) and changes the other ports to sending m o[...]

  • Page 11

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 11 Revision 1.1 (07-24-07) DATASHEET Option Feature for Jitter Filtering When any RX ports receive the bigger jitter than its allowance, the TMC2005 may fail to receive the data correctly and the netw ork may be down.. How ever the below method to escape is effective for the case that a mo[...]

  • Page 12

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 12 SMSC TMC2005-JT DATASHEET APPLICATION NOTES Example 1: A five ports HUB with HYC4000s in backplane mode. FIGURE 1 - A PPLICATION EXA MPLE Only the TMC2005 and five transceivers are indicated in the above figure. Connect the other pins adequately.[...]

  • Page 13

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 13 Revision 1.1 (07-24-07) DATASHEET Example 2: A five ports HUB w ith HYC9088s and a optic al transceiver(TODX270A) links the two physical lay ers; dipulse and fiber optics. FIGURE 2 - A PPLICATION EXA MPLE 2 Only the TMC2005 and five transceivers are indicated in the above figure. Connec[...]

  • Page 14

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 14 SMSC TMC2005-JT DATASHEET Example 3: A five ports HUB with tw o optical tran sceivers, two HYC9088s, and a HYC4000 links three physical layers; fiber optics, dipulse, and AC-485. FIGURE 3 - A PPLICATION EXA MPLE 3 Only the TMC2005 and five transceivers are indicated in the figu[...]

  • Page 15

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 15 Revision 1.1 (07-24-07) DATASHEET Example 4: An on-board type HUB w ith a COM20020 and four optical transceivers in backplane mode. FIGURE 4 - A PPLICATION EXA MPLE 4 Only the TMC2005 and four transceivers with the COM20020 are indicated in the above figure. Connect the other pins adequ[...]

  • Page 16

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 16 SMSC TMC2005-JT DATASHEET Example 5: An on-board type HUB w ith a COM20020 and four RS 485 transceivers. FIGURE 5 - A PPLICATION EXA MPLE 5 Only the TMC2005 and four transceivers with the COM20020 are indicated in the above figure. Connect the other pins adequately.[...]

  • Page 17

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 17 Revision 1.1 (07-24-07) DATASHEET Example 6: An on-board type HUB w ith a COM20020, two HYC4000s, and two HYC9088s links tw o different physical layers; dipulse and AC-485. FIGURE 6 - A PPLICATION EXA MPLE 6 Only the TMC2005 and four transceivers with the COM20020 are indicated in the a[...]

  • Page 18

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 18 SMSC TMC2005-JT DATASHEET Example 7: An eight ports HUB ar e composed by using two TMC2005. Two TMC2005 connects the EXTTX signal with the EXTRX signal. FIGURE 7 - A PPLICATION EXA MPLE 7 Only the tw o TMC2005s are indicated in the above figure. Connect the other pins adequatel[...]

  • Page 19

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 19 Revision 1.1 (07-24-07) DATASHEET Example 8: A sixteen ports HUB are composed by using four TMC2005. T he EXT port between TMC2005 is made an open-drain mode and it connects it (left example). Or put standard logic IC such as 74LS20 outside (right example). This connected method is exce[...]

  • Page 20

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 20 SMSC TMC2005-JT DATASHEET PORT GROUP The five ports can be divided into three groups (group A: two ports, group B: two ports, extension port: one port) and each group can select TX/RX polar, noise cut mode, and big jitter mode respectively. Select pins for each group are as fol[...]

  • Page 21

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 21 Revision 1.1 (07-24-07) DATASHEET CONNECTING THE TMC2005 WITH INTERNAL PLL When using the TMC2005 at data ra te 2.5Mbps or lower, it is not necessary to use internal PLL. Leave the loop filter pins (RO, LP) open and connect AGS to the Ground. The pins for the analog power supply (AVSS, [...]

  • Page 22

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 22 SMSC TMC2005-JT DATASHEET Method To Connect A Crystal Clock Connect with external parts as follow s: FIGURE 11 - CONNECTING THE CRYSTA L CLOCK Note 1: W hen designing a printed circuit board, keep the patte rns as short as possible and don’t cross w ith other patterns. Note 2[...]

  • Page 23

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 23 Revision 1.1 (07-24-07) DATASHEET CASCADING CONNECTION HUBs can be connected in cascade by using the ports as Fig. 12. In the case of cascade connection, it is necessary to consider how many HUBs can exist in serial. T he maximum delay betw een input port and output port is 650ns @2.5Mb[...]

  • Page 24

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 24 SMSC TMC2005-JT DATASHEET FIGURE 13 - CA SCADE CONNECTION OF 8 PORT HUB FIGURE 14 - CA SCADE CONNECTION OF 8 PORT HUB NODE NODE TMC2005 TMC2005 4 3 2 1 2 3 4 5 4 3 2 1 2 3 4 5 TMC2005 TMC2005 4 3 2 1 2 3 4 5 4 3 2 1 2 3 4 5 TMC2005 TMC2005 4 3 2 1 2 3 4 5 4 3 2 1 2 3 4 5 TMC200[...]

  • Page 25

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 25 Revision 1.1 (07-24-07) DATASHEET Fig.15 shows a 16 ports HUB w ith four T MC2005s c onnected by open–drain ports. When assigning two ports for cascade connection to the same TMC2005, the number of TMC2005s for seri al connection can be reduced to the number of HUBs plus two. FIGURE 1[...]

  • Page 26

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 26 SMSC TMC2005-JT DATASHEET Ring Netw ork With the T MC2005 The reliability of the network can be improved by connecting every node in a ring, because the communication is maintained through the reverse route ev en if the cable is cut at a point. However ARCNET controller alone c[...]

  • Page 27

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 27 Revision 1.1 (07-24-07) DATASHEET OPERATIONAL DESCRIPTION MA XIMUM GUARA NTEED RATINGS* Stresses above those listed may cause permanent damage to the device. This is a stress rating only and functional operation of the device at t hese or any other condition abov e those indicated in th[...]

  • Page 28

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 28 SMSC TMC2005-JT DATASHEET DC CHA RACTERISTIC - OUTPUT PIN SYMBOL ITEM CONDITION MIN MA X UNIT PIN VOH High Level Output Voltage IOH=-4mA 2.4 V 1,9,46,51, 55,61 VOH High Level Output Volt age IOH=-8mA 2.4 V 11,45,47 VOL Low Level Output Voltage IOL=4mA 0.4 V 1,9,46,51, 55,61 VOL[...]

  • Page 29

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 29 Revision 1.1 (07-24-07) DATASHEET A C CHARA CTERISTIC – Rx w aveforms and Tx w aveforms FIGURE 18 - RX WA VEFORMS AND TX WA VEFORMS ITEMS MA RK MIN TYP MAX UNIT REMA RK RXIN Low Pulse Width t1 15 nS RXIN High Pulse Width t2 15 nS Tdr RXIN Period t3 (400) nS (Value at 2.5Mbps) 2/8Tdr 3[...]

  • Page 30

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 30 SMSC TMC2005-JT DATASHEET ITEMS MA RK MIN TYP MA X UNIT REMA RK 9/8Tdr 10/8Tdr+50 RXIN First Active Edge to nPULSE1 First Active Edge t11 (450) (550) nS Note3 (Value at 2.5Mbps) 1/4Tdr nPULSE1 Low Pulse Width t12 (100) nS (Value at 2.5Mbps) 3/4Tdr nPULSE1 High Pulse Width t13 ([...]

  • Page 31

    ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 31 Revision 1.1 (07-24-07) DATASHEET TMC2005-JT 64 PIN TQFP PACKAGE OUTLINE Zd Ze D1 E1 E 64 1 D SYMBOL MIN (mm) TYP (mm) MAX (mm) D 11.8 12.0 12.2 D1 9.9 10.0 10.1 E 11.8 12.0 12.2 E1 9.9 10.0 10.1 Ze 1.25 typ Zd 1.25 typ[...]

  • Page 32

    ARCNET 5 Port HUB Controlle r Datasheet Revision 1.1 (07-24-07) Page 32 SMSC TMC2005-JT DATASHEET SYMBOL MIN (mm) TYP (mm) MA X (mm) A 1.6 A1 0.95 0.1 0.15 A2 1.35 1.4 1.45 B 0.17 0.22 0.27 E 0.5 BSC aaa 0.08 bbb 0.08 SYMBOL MIN (mm) TYP (mm) MA X (mm) c 0.9 0.145 0.2 L 0.45 0.6 0.75 A2 A 1 A e b bbb M aaa c L[...]