Instruction/ maintenance manual of the product TMC2005-JT SMSC
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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.
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.
ARCNET 5 Port HUB Controller Datasheet SMSC TMC2005-JT Page 3 Revision 1.1 (07-24-07) DATASHEET TABLE OF CONTENTS FEATURES ....................................................................................................................... ........
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 V.
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 .
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.
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).
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.
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 .
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.
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.
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.
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.
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.
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.
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.
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.
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.
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).
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.
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.
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.
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.
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 .
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.
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.
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.
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.
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.
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.
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.
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.
An important point after buying a device SMSC TMC2005-JT (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought SMSC TMC2005-JT yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data SMSC TMC2005-JT - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, SMSC TMC2005-JT you will learn all the available features of the product, as well as information on its operation. The information that you get SMSC TMC2005-JT will certainly help you make a decision on the purchase.
If you already are a holder of SMSC TMC2005-JT, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime SMSC TMC2005-JT.
However, one of the most important roles played by the user manual is to help in solving problems with SMSC TMC2005-JT. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device SMSC TMC2005-JT along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
