EPM2210F100A ALTERA [Altera Corporation], EPM2210F100A Datasheet - Page 14

• Manufacturer Part Number: EPM2210F100A
• Description: MAX II Device Family
• Manufacturer: ALTERA [Altera Corporation]

2–6
Figure 2–5. LAB-Wide Control Signals
Logic Elements
MAX II Device Handbook
Dedicated
LAB Column
Clocks
Local
Interconnect
Local
Interconnect
Local
Interconnect
Local
Interconnect
Local
Interconnect
Local
Interconnect
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.
4
labclk1
labclkena1
labclk2
labclkena2
asyncload
or labpre
syncload
labclr1
© October 2008 Altera Corporation
Chapter 2: MAX II Architecture
labclr2
synclr
Logic Elements
addnsub