WIENER, Plein & Baus GmbH
4
www.wiener-d.com
1 GENERAL DESCRIPTION
The
VM-DBA is a new test and diagnostic module for VME / VME64x bus systems which visualizes
activities on all VME bus lines on the set of front-panel LED’s, but also allows one to digitize
individual waveforms of all these bus lines into 2kBit long storage memories, for a subsequent
readout via VME or USB interfaces.
The digitization of waveforms is triggered by a programmable selection of conditions, including an
external signal received at the front-panel LEMO connector. Pre-and post trigger sample ranges can
be defined.
1.1
VM-DBA features
The VM-DBA provides all functionality of the predecessor VDIS-2 but adds a full VME-bus
analyzer with VME and USB read-out as well as additional test and diagostic functions.
Single-width 6U VME / VME64x slave module
VME-bus-Slave D32 and A16, A24, A32. Interrupt handler 1H(1-7)
conform to VME-bus ANSI/IEEE STD 1014, IEC821 and IEC297
Dual user interface - VME and USB
LED indicators for all VME bus lines:
32 data and 32 address lines
interrupt lines (IRQ1-7 , IACK, IACKIN)
Bus Clear, Bus Busy, BG1 - BG3 and BR1 - BR3
control signals (VD, CLK, RES, SYSF, ACF, AS, DS1, DS0, LWORD, DTACK, BERR)
address modifier (AM0 - AM5)
supply voltages (+5V, +/-12V, +3.4V)
4 user programmable front panel LED’s, status and 5 control LED’s
32-bit read and write register, accessed if no board answers on the VME-bus after a suitable
time-out and asserts DTACK
Built-in full functionality of VDIS-2 predecessor module:
Two on-board, user-programmable SPI memories to store 2 different FPGA configurations.
Built in VME bus analyzer with 2k memory for all bus lines, sampling with 100MHz or
200MHz, user- programmable trigger for waveform digitization and pre- / post trigger time
range
NIM / TTL input (jumper selectable)
Selection of user-programmable registers and memories for comprehensive testing of VME
bus operations, including IRQ handling and bus arbitration.
Functionality based on a Xilinx XC6SLX100 FPGA
Low power CMOS-Technology: power consumption <0.8 A
