Introduction
6
1.1
Applications and Features
The ES1651.1-B Carrier Board acts as a carrier board for up to four I/O modules
in VMEbus systems. All modules of types ”PB4350XXX” and ”PB1651XXX”
can be used in any combination. An SPI control unit realized in the FPGA of the
board converts the parallel data flow of the processor into a serial bit flow for
the SPI interfaces of the I/O modules.
VMEbus Interface
The ES1651.1-B Carrier Board has a VMEbus slave interface and reacts to
”A24 non privileged data access” accesses (VMEbus address modifier 39 hex).
The position of the 64-kByte VMEbus address space of the board can be set
either dynamically or statically. Data is exchanged with VMEbus master boards
via a 32-kByte DPRAM. The board can trigger interrupts at the VMEbus.
Inspection and Versioning Data
Inspection and versioning data of the board are stored in a serial non-volatile
data memory.
Processor
The MPC555 processor of the board has a 448-kByte ROM memory which is
large enough for program code and data; this is why the optional external
ROM memory is not assembled.
Note
The components, connectors and conductors of the ES1651.1-B Carrier
Board may carry dangerous voltages.
These voltages may even exist when the board is not installed in the VMEbus
system or the VMEbus system is powered off.
Make sure that the board is protected against contact during operation.
Disconnect all connections to the ES1651.1-B Carrier Board before removing
the board from the VMEbus system.
Содержание ES1651.1-B
Страница 1: ...ES1651 1 B Carrier Board User s Guide ...
Страница 10: ...Hardware Features 10 ...
Страница 24: ...Installing I O Modules 24 ...
Страница 28: ...Pin Assignments and Display Elements 28 ...
Страница 32: ...ETAS Contact Addresses 32 ...