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REV. 2.0.1 

SP338/SP339/XR34350 EVALUATION BOARD USER’S MANUAL

Evaluation Board User’s Manual

SP338/SP339/XR34350EVB

Summary of Contents for SP338

Page 1: ...1 REV 2 0 1 SP338 SP339 XR34350 EVALUATION BOARD USER S MANUAL Evaluation Board User s Manual SP338 SP339 XR34350EVB...

Page 2: ...igure 1 below FIGURE 1 EVALUATION BOARD BLOCK DIAGRAM XR21B1411 SP338 SP339 XR34350 SW3 SW4 USB Connector DB9 Connector In addition to the DUT SP338 SP339 XR34350 there is an Exar XR21B1411 1 ch USB U...

Page 3: ...38 339 XR34350 configured in the Loopback mode J23 Pins 7 8 MODE0 0 J23 Pins 9 10 MODE1 0 J23 Pins 11 12 MODE2 0 This mode can be used for diagnostic purposes FIGURE 2 LOOPBACK MODE TP4 TP6 TP8 TP10 T...

Page 4: ...rom the factory FIGURE 3 RS 232 MODE L1 L2 L3 L4 L6 L7 L8 L9 Vcc R2 R3 R4 R6 R7 R8 R9 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 1 2 3 4 5 6 7 8 9 10 30 29 28 27 26 25 24 23 22 21 All...

Page 5: ...these pins J23 Pins 11 12 MODE2 0 The RS 485 signals are also accessible at J16 FIGURE 4 HALF DUPLEX RS 485 MODE 1 TP6 TP8 TP22 TP42 TP20 TP41 Slew Dir1 Mode0 0 Mode1 1 Mode2 0 Term InvDir Enable 1 Vc...

Page 6: ...between these pins J23 Pins 11 12 MODE2 0 The RS 485 signals are also accessible at J16 FIGURE 5 FULL DUPLEX RS 485 MODE 1 Slew Dir1 Mode0 1 Mode1 1 Mode2 0 Term InvDir Enable 1 Vcc T1 R1 R2 R3 R4 11...

Page 7: ...also accessible at J16 FIGURE 6 FULL DUPLEX RS 485 MODE 2 TP6 TP8 TP26 TP51 TP24 TP43 TP22 TP42 TP20 TP41 Slew Dir1 Dir2 Mode0 0 Mode1 0 Mode2 1 Term InvDir Enable 1 Vcc T1 R1 T2 R2 R2 R3 R4 R6 R7 R8...

Page 8: ...s J23 Pins 11 12 MODE2 1 jumper installed between these pins The RS 485 signals are also accessible at J16 FIGURE 7 FULL DUPLEX RS 485 MODE 3 TP6 TP8 TP26 TP51 TP20 TP41 TP34 TP55 TP30 TP53 Slew Dir1...

Page 9: ...MODE2 1 jumper installed between these pins The RS 485 signals are also accessible at J16 FIGURE 8 HALF DUPLEX RS 485 MODE 2 R2 R3 R4 R6 R7 R8 R9 TP6 TP8 TP26 TP51 TP22 TP42 TP20 TP41 Slew Dir1 Mode0...

Page 10: ...RS 485 signals are also accessible at J16 FIGURE 9 RS 485 422 MIXED DUPLEX MODE R2 R3 R4 R6 R7 R8 R9 TP6 TP8 TP12 TP14 TP16 TP18 TP34 TP55 TP32 TP54 TP30 TP53 TP28 TP52 TP26 TP51 TP24 TP43 TP22 TP42...

Page 11: ...is pin install a jumper at J23 pins 5 6 2 2 3 1 Full Duplex Mode In the full duplex modes this pin enables disables the T2 differential driver A logic low disables the T2 differential driver A logic h...

Page 12: ...d 4 1 Loopback Mode or RS 232 Mode The XR21B1411 can transmit and receive data through the SP338 339 XR34350 if the switches at SW3 and SW4 are in the ON position For RS 232 mode an external null mode...

Page 13: ...unction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness Products are not authorized for use in such applica...

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