參數(shù)資料
型號(hào): EPM2210F324A3N
廠商: ALTERA CORP
元件分類: PLD
英文描述: FLASH PLD, PBGA324
封裝: 19 X 19 MM, 1 MM PITCH, LEAD FREE, FBGA-324
文件頁數(shù): 17/108頁
文件大?。?/td> 1342K
代理商: EPM2210F324A3N
2–8Core Version a.b.c variable
Altera Corporation
MAX II Device Handbook, Volume 1
March 2008
Logic Elements
The smallest unit of logic in the MAX II architecture, the LE, is compact
and provides advanced features with efficient logic utilization. Each LE
contains a four-input LUT, which is a function generator that can
implement any function of four variables. In addition, each LE contains a
programmable register and carry chain with carry-select capability. A
single LE also supports dynamic single-bit addition or subtraction mode
selectable by an LAB-wide control signal. Each LE drives all types of
interconnects: local, row, column, LUT chain, register chain, and
DirectLink interconnects. See Figure 2–6.
Figure 2–6. MAX II LE
Each LE’s programmable register can be configured for D, T, JK, or SR
operation. Each register has data, true asynchronous load data, clock,
clock enable, clear, and asynchronous load/preset inputs. Global signals,
general-purpose I/O pins, or any LE can drive the register’s clock and
clear control signals. Either general-purpose I/O pins or LEs can drive the
clock enable, preset, asynchronous load, and asynchronous data. The
labclk1
labclk2
labclr2
labpre/aload
Carry-In1
Carry-In0
LAB Carry-In
Clock and
Clock Enable
Select
LAB Carry-Out
Carry-Out1
Carry-Out0
Look-Up
Table
(LUT)
Carry
Chain
Row, column,
and DirectLink
routing
Row, column,
and DirectLink
routing
Programmable
Register
PRN/ALD
CLRN
D
Q
ENA
Register Bypass
Packed
Register Select
Chip-Wide
Reset (DEV_CLRn)
labclkena1
labclkena2
Synchronous
Load and
Clear Logic
LAB-wide
Synchronous
Load
LAB-wide
Synchronous
Clear
Asynchronous
Clear/Preset/
Load Logic
data1
data2
data3
data4
LUT chain
routing to next LE
labclr1
Local routing
Register chain
output
ADATA
addnsub
Register
Feedback
Register chain
routing from
previous LE
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