10.4.10.1.1 Modes

The three major modes available for read and write operations are:

• Read Non-pipelined (synchronous - one clock edge) The read address is registered on the read port clock edge and data appears at read-data after the RAM access time (when all RENs are high, approximately 4.5 ns). The setup time of the read address and read enable are minimal with respect to the read clock. Setting the Pipeline to OFF enables this mode.
• Read Pipelined (synchronous - two clock edges) The read-address is registered on the read port clock edge and the data is registered and appears at read-data after the second read clock edge. Setting the Pipeline to ON enables this mode.
• Write (synchronous - one clock edge) On the write clock edge, the write data are written into the USRAM at the write address (when all WENs are high). The setup time of the write address, write enables and write data are minimal with respect to the read clock.