Hardware Features
10
2
Hardware Features
This section contains a description of the different hardware features of the
ES1651.1 Carrier Board.
These are:
• "Carrier Board for Piggybacks" on page 10
• "Synchronization Bus" on page 10
• "Crankshaft Angle Clock Bus (CAC Bus)" on page 11
• "Generating an Interrupt" on page 15
• "Inspection and Versioning Data" on page 16
2.1
Carrier Board for Piggybacks
The ES1651.1 Carrier Board is used as a carrier board for I/O modules in VME-
bus systems. I/O modules are available for various tasks, such as the generation
and measuring of ECU signals in real time.
All modules of types ”PB4350XXX” and ”PB1651XXX” can be used. This
means that the LABCAR test system can be equipped both with the standard
I/O modules for the ES1651.1 Carrier Board (VME system) and with the highly
precise I/O modules for the ES4350 Carrier Board. Up to four I/O modules of
both types mentioned above can be used per ES1651.1 Carrier Board.
The I/O modules are connected using ribbon cable. There are four connectors
on the ES1651.1 Carrier Board for this purpose. For more details on how to
assemble I/O modules, please refer to section 5 on page 26.
2.2
Synchronization Bus
The ES1651.1 Carrier Board has a synchronization bus for synchronizing
• the I/O modules mounted on the carrier board with each other,
• I/O modules with the carrier board,
• I/O modules with other I/O modules which are installed on other
ES1651.1 Carrier Boards or ES4350 Carrier Boards in the same or other
VMEbus systems,
• with other external hardware which can generate or interpret the rele-
vant synchronization signals.
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