EP20K400CF672C8 Altera, EP20K400CF672C8 Datasheet - Page 28

• Manufacturer Part Number: EP20K400CF672C8
• Description: APEX 20KC
• Manufacturer: Altera

APEX 20KC Programmable Logic Device Data Sheet
Figure 16. APEX 20KC Parallel Expanders
Embedded
System Block
28
Local Interconnect
32 Signals from
The ESB can implement various types of memory blocks, including
dual-port RAM, ROM, FIFO, and CAM blocks. The ESB includes input
and output registers; the input registers synchronize writes, and the
output registers can pipeline designs to improve system performance. The
ESB offers a dual-port mode, which supports simultaneous reads and
writes at two different clock frequencies.
diagram.
Figure 17. ESB Block Diagram
Product-
Product-
Select
Matrix
Select
Matrix
Term
Term
wraddress[]
data[]
wren
inclock
inclocken
inaclr
Parallel
Expander Switch
Parallel
Expander Switch
Macrocell
Previous
From
Figure 17
Macrocell
To Next
rdaddress[]
outclocken
outclock
outaclr
rden
shows the ESB block
q[]
Altera Corporation
Macrocell
Product-
Term Logic
Macrocell
Product-
Term Logic