DK-DEV-5SGXEA7/ES Altera, DK-DEV-5SGXEA7/ES Datasheet - Page 91

• Manufacturer Part Number: DK-DEV-5SGXEA7/ES
• Description: KIT DEV STRATIX V FPGA 5SGXEA7
• Manufacturer: Altera
• Series: Stratix® Vr
• Type: FPGAr

Specifications of DK-DEV-5SGXEA7/ES

• Contents: Board
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Stratix® V 5SGXEA7
• Other names: 544-2725

Chapter 1: Logic Array Blocks and Adaptive Logic Modules in Stratix V Devices
Adaptive Logic Modules
May 2011 Altera Corporation
Register Chain
In addition to general routing outputs, ALMs in the LAB have register-chain outputs.
Register-chain routing allows registers in the same LAB to be cascaded together. The
register-chain interconnect allows the LAB to use LUTs for a single combinational
function and the registers to be used for an unrelated shift-register implementation.
These resources speed up connections between ALMs while saving local interconnect
resources (refer to
advantage of these resources to improve utilization and performance.
Figure 1–12. Register Chain within the LAB
Note to
(1) You can use the combinational or adder logic to implement an unrelated, un-registered function.
For more information about the register-chain interconnect, refer to
Interconnects” on page
Figure
1–12:
Figure
Combinational
Combinational
Logic
Logic
1–14.
1–12). The Quartus II Compiler automatically takes
adder0
adder0
adder1
adder1
Stratix V Device Handbook Volume 2: Device Interfaces and Integration
(Note 1)
reg_chain_in
reg_chain_out
labclk
D
D
D
D
D
D
D
D
reg0
reg1
reg2
reg3
reg0
reg1
reg2
reg3
From previous ALM
within the LAB
To next ALM
within the LAB
Q
Q
Q
Q
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
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
local routing
local routing
local routing
local routing
local routing
local routing
local routing
local routing
“ALM
1–13