EP3SL150F780I3N Altera, EP3SL150F780I3N Datasheet - Page 40

• Manufacturer Part Number: EP3SL150F780I3N
• Description: Stratix III
• Manufacturer: Altera

Adaptive Logic Modules
Figure 2–5. High-Level Block Diagram of the Stratix III ALM
2–6
Stratix III Device Handbook, Volume 1
datae0
datae1
dataf0
dataf1
dataa
datab
datad
datac
Combinational/Memory ALUT1
Combinational/Memory ALUT0
shared_arith_out
shared_arith_in
6-Input LUT
6-Input LUT
In addition to the adaptive LUT-based resources, each ALM contains two
programmable registers, two dedicated full adders, a carry chain, a
shared arithmetic chain, and a register chain. Through these dedicated
resources, an ALM can efficiently implement various arithmetic
functions and shift registers. Each ALM drives all types of interconnects:
local, row, column, carry chain, shared arithmetic chain, register chain,
and direct link interconnects.
diagram of the Stratix III ALM while
all the connections in an ALM.
carry_in
carry_out
adder0
adder1
Figure 2–5
reg_chain_in
reg_chain_out
Figure 2–6
labclk
shows a high-level block
D
D
reg0
reg1
shows a detailed view of
Q
Q
Altera Corporation
To general or
To general or
To general or
To general or
local routing
local routing
local routing
local routing
October 2007