參數(shù)資料
型號(hào): EP20K1000E
廠商: Altera Corporation
英文描述: Programmable Logic Device Family
中文描述: 可編程邏輯器件系列
文件頁數(shù): 33/117頁
文件大?。?/td> 570K
代理商: EP20K1000E
Altera Corporation
33
APEX 20K Programmable Logic Device Family Data Sheet
Input/Output Clock Mode
The input/output clock mode contains two clocks. One clock controls all
registers for inputs into the ESB: data input,
WE
,
RE
, read address, and
write address. The other clock controls the ESB data output registers. The
ESB also supports clock enable and asynchronous clear signals; these
signals also control the reading and writing of registers independently.
Input/output clock mode is commonly used for applications where the
reads and writes occur at the same system frequency, but require different
clock enable signals for the input and output registers.
Figure 21
shows
the ESB in input/output clock mode.
Figure 21. ESB in Input/Output Clock Mode
Note (1)
Notes to
Figure 21
:
(1)
All registers can be cleared asynchronously by ESB local interconnect signals, global signals, or the chip-wide reset.
(2)
APEX 20KE devices have four dedicated clocks.
Single-Port Mode
The APEX 20K ESB also supports a single-port mode, which is used when
simultaneous reads and writes are not required. See
Figure 22
.
Dedicated Clocks
2 or 4
(2)
4
D
ENA
Q
D
ENA
Q
D
ENA
Q
D
ENA
Q
D
ENA
Q
data[ ]
rdaddress[ ]
wraddress[ ]
RAM/ROM
1256
×
16
×
8
512
×
4
×
2
1,024
×
1
Data In
Read Address
Write Address
Read Enable
Write Enable
Data Out
outclken
inclken
inclock
outclock
D
ENA
Q
Write
Pulse
Generator
rden
wren
Dedicated Inputs &
Global Signals
to MegaLAB,
FastTrack &
Local
Interconnect
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EP20K1000EBC652-1 功能描述:FPGA - 現(xiàn)場可編程門陣列 CPLD - APEX 20K 2560 Macros 488 IO RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
EP20K1000EBC652-1ES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FPGA
EP20K1000EBC652-1X 功能描述:FPGA - 現(xiàn)場可編程門陣列 CPLD - APEX 20K 2560 Macros 488 IO RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
EP20K1000EBC652-2 功能描述:FPGA - 現(xiàn)場可編程門陣列 CPLD - APEX 20K 2560 Macros 488 IO RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
EP20K1000EBC652-2ES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FPGA