Using The Bus Controller; Board Description - Actel Core1553BBC DevKit Quick Start Manual

Using the Bus Controller

Board Description

The Core1553BBC DevKit can be used to test modifications you made to the
core or can be used to test custom backends using a daughter card strategy. For
either case, a new device can be programmed and inserted into the socket.
For the daughter card strategy, it is essential to ensure that the synchronous
SSRAMs are configured so that they will not drive data. The simplest
mechanism for doing this is to ensure that the signal "RAM_CEn" be held high
by the FPGA. A daughter card can then be connected through the backend
header pins and will not be affected by the SSRAM devices.
The 1553BBC demo board is illustrated in Figure 3-1. The main components
on the board are the socketed FPGA 1553B transceivers and transformers, the
backend SSRAM, the Silicon Explorer connector, and the backend header
strips. The RS-232 translator and SDRAM DIMM interface are not used in the
1553BBC design. The board includes the 64-bit PCI extension; however, the
extension is not used.
Figure 3-1. 1553BBC Demo Board
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