EP2S15 ALTERA [Altera Corporation], EP2S15 Datasheet - Page 42

• Manufacturer Part Number: EP2S15
• Description: Stratix II Device Family
• Manufacturer: ALTERA [Altera Corporation]

TriMatrix Memory
Figure 2–22. M4K RAM Block LAB Row Interface
2–34
Stratix II Device Handbook, Volume 1
Direct link
interconnect
to adjacent LAB
Direct link
interconnect
from adjacent LAB
C4 Interconnect
M4K RAM Block Local
Interconnect Region
16
M-RAM Block
The largest TriMatrix memory block, the M-RAM block, is useful for
applications where a large volume of data must be stored on-chip. Each
block contains 589,824 RAM bits (including parity bits). The M-RAM
block can be configured in the following modes:
■
■
■
■
You cannot use an initialization file to initialize the contents of an M-RAM
block. All M-RAM block contents power up to an undefined value. Only
synchronous operation is supported in the M-RAM block, so all inputs
are registered. Output registers can be bypassed.
True dual-port RAM
Simple dual-port RAM
Single-port RAM
FIFO
datain
control
signals
clocks
LAB Row Clocks
M4K RAM
address
Block
dataout
byte
enable
36
6
Altera Corporation
Direct link
interconnect
to adjacent LAB
Direct link
interconnect
from adjacent LAB
R4 Interconnect
May 2007