參數(shù)資料
型號: EP20K400EQC240-1
廠商: ALTERA CORP
元件分類: PLD
英文描述: LOADABLE PLD, PQFP240
封裝: PLASTIC, QFP-240
文件頁數(shù): 24/65頁
文件大?。?/td> 781K
代理商: EP20K400EQC240-1
52
Altera Corporation
APEX 20K Programmable Logic Device Family Data Sheet
Preliminary Information
Figure 18. Deep Memory Block Implemented with Multiple ESBs
The ESB implements two forms of dual-port memory: read/write clock
mode and input/output clock mode. The ESB can also be used for
bidirectional, dual-port memory applications in which two ports read or
write simultaneously. To implement this type of dual-port memory, two
ESBs are used to support two simultaneous reads or writes.
The ESB can also use Altera megafunctions to implement dual-port RAM
applications where both ports can read or write, as shown in Figure 19.
Figure 19. APEX 20K ESB Implementing Dual-Port RAM
ESB
To System Logic
Address Decoder
Port A
Port B
address_a[]
address_b[]
data_a[]
data_b[]
we_a
we_b
clkena_a
clkena_b
Clock A
Clock B
相關(guān)PDF資料
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