- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377114 > FLEX10K (Altera Corporation) Embedded Programmable Logic Family PDF資料下載
參數(shù)資料
| 型號(hào)： | FLEX10K |
| 廠商： | Altera Corporation |
| 英文描述： | Embedded Programmable Logic Family |
| 中文描述： | 嵌入式可編程邏輯系列 |
| 文件頁數(shù)： | 21/114頁 |
| 文件大?。?/td> | 1422K |
| 代理商： | FLEX10K |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁當(dāng)前第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁
Altera Corporation
21
FLEX 10K Embedded Programmable Logic Family Data Sheet
Clearable Counter Mode
The clearable counter mode is similar to the up/down counter mode, but
supports a synchronous clear instead of the up/down control. The clear
function is substituted for the cascade-in signal in the up/down counter
mode. Two 3-input LUTs are used: one generates the counter data, the
other generates the fast carry bit. Synchronous loading is provided by a
2-to-1 multiplexer. The output of this multiplexer is
AND
ed with a
synchronous clear signal.
Internal Tri-State Emulation
Internal tri-state emulation provides internal tri-stating without the
limitations of a physical tri-state bus. In a physical tri-state bus, the tri-
state buffers output enable (
OE
) signals select which signal drives the bus.
However, if multiple
OE
signals are active, contending signals can be
driven onto the bus. Conversely, if no
OE
signals are active, the bus will
float. Internal tri-state emulation resolves contending tri-state buffers to a
low value and floating buses to a high value, thereby eliminating these
problems. The MAX+PLUS II software automatically implements tri-state
bus functionality with a multiplexer.
Clear & Preset Logic Control
Logic for the programmable registers clear and preset functions is
controlled by the
DATA3
,
LABCTRL1
, and
LABCTRL2
inputs to the LE. The
clear and preset control structure of the LE asynchronously loads signals
into a register. Either
LABCTRL1
or
LABCTRL2
can control the
asynchronous clear. Alternatively, the register can be set up so that
LABCTRL1
implements an asynchronous load. The data to be loaded is
driven to
DATA3
; when
LABCTRL1
is asserted,
DATA3
is loaded into the
register.
During compilation, the MAX+PLUS II Compiler automatically selects
the best control signal implementation. Because the clear and preset
functions are active-low, the Compiler automatically assigns a logic high
to an unused clear or preset.
The clear and preset logic is implemented in one of the following six
modes chosen during design entry:
I
I
I
I
I
I
Asynchronous clear
Asynchronous preset
Asynchronous clear and preset
Asynchronous load with clear
Asynchronous load with preset
Asynchronous load without clear or preset
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FLEX10KA | Embedded Programmable Logic Family |
| FLEX10KE | Embedded Programmable Logic Family |
| FLEX6000 | Programmable Logic Device Family |
| FLEX8000 | PROGRAMMABLE LOGIC DEVICES FAMILY |
| FLL120MK | L-Band Medium & High Power GaAs FET |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FLEX10K_03 | 制造商:ALTERA 制造商全稱:Altera Corporation 功能描述:Embedded Programmable Logic Device Family |
| FLEX10KA | 制造商:ALTERA 制造商全稱:Altera Corporation 功能描述:Embedded Programmable Logic Family |
| FLEX10KE | 制造商:ALTERA 制造商全稱:Altera Corporation 功能描述:Embedded Programmable Logic Device |
| FLEX110 | 功能描述:開發(fā)板和工具包 - PIC / DSPIC Multibus Pack RoHS:否 制造商:Microchip Technology 產(chǎn)品:Starter Kits 工具用于評(píng)估:chipKIT 核心:Uno32 接口類型: 工作電源電壓: |
| FLEX111 | 功能描述:開發(fā)板和工具包 - PIC / DSPIC Fasttrack suite RoHS:否 制造商:Microchip Technology 產(chǎn)品:Starter Kits 工具用于評(píng)估:chipKIT 核心:Uno32 接口類型: 工作電源電壓: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。