ep1m120 Altera Corporation, ep1m120 Datasheet - Page 35

• Manufacturer Part Number: ep1m120
• Description: Programmable Logic Device Family
• Manufacturer: Altera Corporation

Altera Corporation
Figure 17. ESB Quad-Port Block Diagram
In addition to quad port memory, the ESB also supports true dual-port,
dual-port, and single-port RAM. True dual-port RAM supports any
combination of two port operations: two reads, two writes, or one read
and one write. Dual-port memory supports a simultaneous read and
write. For single-port memory, independent read and write is supported.
Figure 18
ESB.
shows these different RAM memory port configurations for an
Mercury Programmable Logic Device Family Data Sheet
data
wraddress
wren
inclocken
inaclr
rdaddress
rden
q
outclocken
outaclr
A
inclock
outclock
[ ]
A
A
A
A
[ ]
A
A
A
A
A
A
A
A
[ ]
[ ]
wraddress
rdaddress
outclocken
outclock
B
inclocken
inclock
outaclr
data
inaclr
wren
rden
q
B
B
B
B
B
B
[ ]
[ ]
[ ]
[ ]
B
B
B
B
B
B
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