EP2S130F1020I4 Datasheet, PDF (372/768 Pages) List of Unclassifed Manufacturers – Stratix II Device Handbook, Volume 1

Memory Modes
Simple Dual-Port Mode
All TriMatrix memory blocks support simple dual-port mode which
supports a simultaneous read and write operation. Figure 2–7 shows the
simple dual-port memory configuration for TriMatrix memory.
Figure 2–7. Stratix II and Stratix II GX Simple Dual-Port Memory Note (1)
data[ ]
wraddress[ ]
wren
byteena[]
wr_addressstall
wrclock
wrclocken
rdaddress[ ]
rden
q[ ]
rd_addressstall
rdclock
rdclocken
rd_aclr
Note to Figure 2–7:
(1) Simple dual-port RAM supports input/output clock mode in addition to the
read/write clock mode shown.
2–12
Stratix II Device Handbook, Volume 2
Altera Corporation
January 2008