EP3SE50F780I3N Altera, EP3SE50F780I3N Datasheet - Page 55

• Manufacturer Part Number: EP3SE50F780I3N
• Description: Stratix III
• Manufacturer: Altera

Figure 2–17. Register Chain within an LAB
Note to
(1)
Altera Corporation
October 2007
You can use the combinational or adder logic to implement an unrelated, un-registered function.
Figure
2–17:
Combinational
Combinational
Logic
Logic
1
Logic Array Blocks and Adaptive Logic Modules in Stratix III Devices
adder0
adder1
adder0
adder1
Refer to
information on register chain interconnect.
Note (1)
“ALM Interconnects” on page 2–22
reg_chain_out
reg_chain_in
labclk
Stratix III Device Handbook, Volume 1
D
D
D
D
reg0
reg1
reg0
reg1
From previous ALM
within the LAB
To next ALM
within the LAB
Q
Q
Q
Q
To general or
To general or
To general or
To general or
To general or
To general or
To general or
To general or
local routing
local routing
local routing
local routing
local routing
local routing
local routing
local routing
for more
2–21