MA7001 Datasheet, PDF (8/15 Pages) Dynex Semiconductor – Radiation Hard 512x9 Bit FIFO

MA7001
Figure 12: Depth Expansion Mode (1024 x 9 bits)
Compound Expansion Mode:
Both width and depth expansion can be implemented into the
same expansion block. Note that no control signals are in
conflict in either of the two expansion modes, i.e. width or
depth expansion modes. Utilising compound expansion large
FIFO arrays are possible. Figure 13 illustrates the use of
compound expansion.
Bidirectional Mode:
The FIFO is a unidirectional device, i.e. one system reads,
another writes. In cases where full communication is required
between two or more systems, two or more groups of devices
can be used. These groups can utilise any or all of the
expansion modes already mentioned. Figure 14 illustrates 2
systems connected so that each can transmit data to and
recieve data from each other, (see Modes of Operation for
connection of control and data signals).
Figure 13: Compound Expansion
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