Gopel Electronic SFX-TAP2/C Technical Description Download Page 25

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Desktop Transceiver SFX-TAP4_2/C, V0.1, Technical Description

5.2.8 Testbus Signals on TAP/PIP User Interface

All Testbus signals are provided on the connector TAP/PIP (SCSI68) (see TAP/PIP User
interface).

5.2.9 SCP Controller

The Desktop Transceiver SFX-TAP2/C allows the control of „SCP Modules“. These modules
typically provide additional BScan test resources in order to increase the test coverage of a
board. Typical application is testing through edge connectors.

Summary of Contents for SFX-TAP2/C

Page 1: ...4 C SFX TAP2 C Technical Description Version 0 1 Intelligent Boundary Scan Solutions G PEL electronic GmbH G schwitzer Str 58 60 D 07745 Jena Tel 49 3641 6896 0 Fax 49 3641 6896 44 E Mail support goep...

Page 2: ...al is subject to change without notice and is supplied for information only In case of inaccuracies or errors appearing in this manual GOEPEL electronic GmbH assumes no liability or responsibility Wit...

Page 3: ...Signals 10 4 6 Output Voltages 11 4 6 1 Output Voltages on TAP PIP Connector 11 4 6 2 Switch for the function of the PwrCtrl Connector 11 4 7 Boundary Scan Interface 12 4 8 Output Driver 12 4 8 1 Abs...

Page 4: ......

Page 5: ...ceiver In combination Host Controller connected via a SFX cable it forms a highly flexible Boundary Scan test system with 4 2 independent voltage and impedance programmable TAP s ADYCS Active Delay Co...

Page 6: ...interface ADYCS Active Delay Compensation voltage programmable 32 Bit Parallel Interface Port PIP in the range of 1 8V 4 5V relay output 5V or a logic signal at each TAP 2 or 4 on connector PwrCtrl fo...

Page 7: ...the power supply pins at connector 3 Device Structure 3 1 Interfaces Controller interface SFX LS interface Testbus IEEE 1149 1 TAP PIP connector 68 pole SCSI Parallel I O interface TAP PIP connector 6...

Page 8: ...ver Assignment of the AUX connector 1 TRG0 3 TRG1 5 TRG2 7 D AUX1 9 D AUX2 11 D AUX3 13 A AUX1 15 A AUX2 2 4 6 8 10 12 14 16 GND 3 4 PwrCtrl Connector 3 5 1 4 6 2 Figure 3 PwrCtrl connector on the Sid...

Page 9: ...eans 8 or 16 Bit each can be in tristate or active mode The PIP complex is designed with the same driver circuitries as for TAPs For further information refer to chapter 4 8 and 2 4 3 Analog IO Signal...

Page 10: ...TRG2 pin5 is an input The voltage limits on all these pins is 0 3 V to 5 0 V Load current is limited to 10 mA Signals 0 7V are seen a LOW voltages 2 0V as HIGH Two of the 3 trigger signals are in use...

Page 11: ...at left Position and Block Diagram Is the switch on the left position 5V 50 mA is available via relay on PwrCtrl connector The relay is active only during the test execution Condition is the activatio...

Page 12: ...te Connect the TDI line s of the Desktop Transceiver SFX TAP4 C SFX TAP2 C with TDO lines of the UUT s Connect TDO line s of the SFX TAP4 C SFX TAP2 C with the TDI input s of the UUT 4 8 Output Driver...

Page 13: ...Vcc 1 8V 6mA Free Air Operating Temperature TA 0 C to 70 C Input capacity 27 C 8pF Output capacity 27 C 10pF Table Recommended Operating Conditions See 2 4 8 3 Electrical Characteristics Electrical Ch...

Page 14: ...Conditions Vcc V Min Max Unit VIH 2 3 to 2 7 1 6 V VIL 2 3 to 2 7 0 7 V VOH IOH 100 A 2 3 to 2 7 Vcc 0 2 V VOH IOH 6mA 2 3 2 0 V VOH IOH 12mA 2 3 1 8 V VOH IOH 18mA 2 3 1 7 V VOL IOL 100 A 2 3 to 2 7...

Page 15: ...ximum TCK frequency is given by the SCANFLEX controller type Controller Type Max TCK MHz A 20 B 50 C 80 Die TCK frequency is generated following this formula x 12MHz n 0 25MHz 2 m Frequency Range Min...

Page 16: ...lack are accepted here even in cases outside the controller specific range as they are depending on the setting of the UUT All settings in this index card don t have any impact to SCANFLEX products Vo...

Page 17: ...line resistor for outputs Pull down resistor for inputs activation of the power relay ADYCS II the UUT TCK TDO delay The TAP specific settings are made as follow First go to View Tester Configuration...

Page 18: ...re 8 Define a new Configuration Now select the just defined configuration On the right side select SFX Contoller in the group Modul types Press button Insert Figure 9 Insert Controller Select SFX_cont...

Page 19: ...right panel The recognized SCANFLEX hardware is inserted under SFX HS SFX LS1 and SFX LS2 In our example a SFX TAp4 has been recognized which appears as SFX_TAP_splitter_4_1 in the left panel Again s...

Page 20: ...panel a further register named Project Parameters There all current parameters are displayed They can be modified there by Edit Figure 12 Overview of project parameters The TAP settings can be change...

Page 21: ...Type see figure 13 you can select the TIC type Type 01 must be selected for operation For de activation select None It removes a TAP from the configuration without deleting it from the SFX TAPx For th...

Page 22: ...ion start The following delay parameter ensures stable relay contact position and power up of the UUT before the test itself starts Since the delay time can be defined per TAP individually the largest...

Page 23: ...y is the more precise t has to be The software calculates the TCK frequency following this formula FTCK 1 4 x t 2 ns Maximum values of TCK TDO delay delta t in order to get a particular TCK frequency...

Page 24: ...on Scan Trainer II GOEPEL as UUT plus 50 cm flat cable to controller Cable delay UUT delay 2 x 2 5 ns 10 ns 15 ns The UUT delay was theoretically calculated and proved by measuring 10 ns Note Measure...

Page 25: ...are provided on the connector TAP PIP SCSI68 see TAP PIP User interface 5 2 9 SCP Controller The Desktop Transceiver SFX TAP2 C allows the control of SCP Modules These modules typically provide additi...

Page 26: ...1 64 PIP 4 5 54 PIP 3 3 56 PIP 3 5 66 PIP 4 7 48 PIP 2 7 46 PIP 2 5 42 PIP 2 1 38 PIP 1 5 34 PIP 1 1 30 GND 20 TMS3 22 TDO3 18 D AUX2 14 TDO2 10 TDO4 6 TDO1 2 GND 68 5 0V 27 25 21 TDI3 19 TCK3 15 53 5...

Page 27: ...5 54 PIP 3 3 56 PIP 3 5 66 PIP 4 7 48 PIP 2 7 46 PIP 2 5 42 PIP 2 1 38 PIP 1 5 34 PIP 1 1 30 GND 20 SCP TMS 22 SCP TDO 18 D AUX2 14 TDO2 10 RSV 6 TDO1 2 GND 68 5 0V 27 25 21 SCP TDI 19 SCP TCK 15 53...

Page 28: ...SFX TAP4 C STT 010 Desktop Transceiver SFX TAP2 C STT 011 8 References 1 User Manual SYSTEM CASCON G PEL electronic GmbH 2005 2 CION Configurable I O Network V1 4 Data Sheet GOEPEL electronic GmbH 20...

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