The software described in this manual as well as the manual itself are supplied under
license and may be used or copied only in accordance with the terms of the license.
The customer may make one copy of the software for safety purposes.
The content of the manual 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.
Without the prior written permission of GOEPEL electronic GmbH, no part of this
documentation may be transmitted, reproduced or stored in a retrieval system in
any form or by any means as well as translated into other languages (except as
permitted by the license).
printed: 02.08.2005
Rev.: 07/05
Author: Dietmar Beltz
The Desktop Transceiver SFX-TAP4/C (SFX-TAP2/C) is a Hardware product of the company
GÖPEL electronic GmbH and belongs to the product group Boundary Scan test tools. It can
only be operated together with the „SYSTEM CASCON“ and „POLARIS“ [1] software or a
respective dynamic link library (DLL) of version 4.2.1 or higher from GÖPEL electronic.
The SFX-TAP4/C (SFX-TAP2/C) is a Desktop Transceiver. 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 Compensation)
• Fast In System Programming (ISP)
• 32 Bit PIP (Parallel Interface Port)
• Trigger Signals (C-Bus)
• SCP-TAP on SFX-TAP2/C
• 2 analog I/O
• 4 (2) Power outputs, relay-connectable
1.1 Versions of the Desktop Transceiver
There are two versions available. Despite of their identical body structure, the performance is
different:
- Desktop Transceiver SFX-TAP2/C --> Compact Transceiver with 2TAP and one SCP-TAP
- Desktop Transceiver SFX-TAP4/C --> Compact Transceiver with 4TAP
The Desktop Transceiver SFX-TAP4/C (SFX-TAP2/C) forms together with the Host Controller a
Boundary Test System that allows versatile kind of connections the Unit-Under-Test (UUTs).
The following device properties allow maximum flexibility of the interface to the UUT:
• voltage-programmable Testbus interface in the range of 1.8V-4.5V, inputs (TDI
signals) in the range of 0V-3.0V
• 3-array impedance programming of the Testbus 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 for UUT
power control
• 2 analog I/O with 10 Bit resolution, (AD and DA converter on 2 pins of the AUX
connector)
• 3 digital I/O on AUX connector
• SFX/LS interface
• Trigger lines (2 output, 1 input) on AUX and on TAP/PIP connector
• SCP-TAP on SFX-TAP2/C
2.2 Dimensions
The Desktop Transceiver SFX-TAP4/C (SFX-TAP2/C) has following dimensions:
All pins of the output drivers have an ESD strength of >1500V and a Latch up Strength of ±100
mA.
2.5 Current Input
The quiescent current is 700 mA.
The current input during operation depends on output driver loads, clock frequency as well as
the load of the power supply pins at connector.
Die voltage supply of the Desktop Transceiver SFX-TAP4/C (SFX-TAP2/C) is obtained by using
the wall power supply. Connect it to the PWR plug of the Transceiver.
4.2 PIP Complex
Count of I/O: 32
Formatting: 4 x 8, 2 x 16
Input voltage range: 0 V – 5,0 V
Output voltage range: 1.8 – 4.5 V
For the PIP unit, there are no handshake signals available. The user must ensure a safe data
transmission.
The output driver of the PIP‘s are activatable group-wise which means 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 Signals
Analog signals can be provided ore measured on pin 13 and 15 of the AUX connector. Signal
generation and Measuring are based on 10-bit converter technique. The voltage range covers 0
and 4.096 V with a maximum rating of - 0.3 to +5.0 V.
The analog output serves an inline resistor of 1 kOhms.
4.4 Digital IO Signals
The AUX connector has 3 general purpose digital I/O signals on pins 7, 9, and 11. All of them
have a 22 Ohm in-line resistor. The connected logic IC is PCA9555. Input voltage range is -0.5
V to 6 V, following is the data sheet of that IC type.