DK-DEV-4SGX230N Altera, DK-DEV-4SGX230N Datasheet - Page 265
DK-DEV-4SGX230N
Manufacturer Part Number
DK-DEV-4SGX230N
Description
KIT DEVELOPMENT STRATIX IV
Manufacturer
Altera
Series
Stratix® IVr
Type
FPGAr
Datasheets
1.EP4SGX110DF29C3N.pdf
(80 pages)
2.EP4SGX110DF29C3N.pdf
(1154 pages)
3.DK-DEV-4SGX230N.pdf
(2 pages)
4.DK-DEV-4SGX530N.pdf
(57 pages)
Specifications of DK-DEV-4SGX230N
Contents
Development Board, Universal Power Supply, Cables and Software
Silicon Manufacturer
Altera
Core Architecture
FPGA
Core Sub-architecture
Stratix
Silicon Core Number
EP4S
Silicon Family Name
Stratix IV GX
Rohs Compliant
Yes
For Use With/related Products
EP4SGX230K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
544-2594
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DK-DEV-4SGX230N
Manufacturer:
Altera
Quantity:
135
- EP4SGX110DF29C3N PDF datasheet
- EP4SGX110DF29C3N PDF datasheet #2
- DK-DEV-4SGX230N PDF datasheet #3
- DK-DEV-4SGX530N PDF datasheet #4
- Current page: 265 of 1154
- Download datasheet (32Mb)
Chapter 7: External Memory Interfaces in Stratix IV Devices
Stratix IV External Memory Interface Features
Figure 7–25. DQS Update Enable Waveform
February 2011 Altera Corporation
(Updated every 8 cycles)
DQS Delay Settings
Update Enable
Circuitry Output
System Clock
DLL Counter Update
(Every 8 cycles)
DQS Delay Chain
DQS delay chains consist of a set of variable delay elements to allow the input
DQS/CQ and CQn signals to be shifted by the amount specified by the DQS
phase-shift circuitry or the logic array. There are four delay elements in the DQS delay
chain; the first delay chain closest to the DQS/CQ pin can be shifted either by the
DQS delay settings or by the sum of the DQS delay setting and the phase-offset
setting. The number of delay chains required is transparent because the
ALTMEMPHY megafunction automatically sets it when you choose the operating
frequency. The DQS delay settings can come from the DQS phase-shift circuitry on
either end of the I/O banks or from the logic array.
The delay elements in the DQS logic block have the same characteristics as the delay
elements in the DLL. When the DLL is not used to control the DQS delay chains, you
can input your own Gray-coded 6-bit or 5-bit settings using the
dqs_delayctrlin[5..0] signals available in the ALTMEMPHY megafunction. These
settings control 1, 2, 3, or all 4 delay elements in the DQS delay chains. The
ALTMEMPHY megafunction can also dynamically choose the number of DQS delay
chains needed for the system. The amount of delay is equal to the sum of the delay
element’s intrinsic delay and the product of the number of delay steps and the value
of the delay steps.
You can also bypass the DQS delay chain to achieve a 0° phase shift.
Update Enable Circuitry
Both the DQS delay settings and the phase-offset settings pass through a register
before going into the DQS delay chains. The registers are controlled by the update
enable circuitry to allow enough time for any changes in the DQS delay setting bits to
arrive at all the delay elements. This allows them to be adjusted at the same time. The
update enable circuitry enables the registers to allow enough time for the DQS delay
settings to travel from the DQS phase-shift circuitry or core logic to all the DQS logic
blocks before the next change. It uses the input reference clock or a user clock from the
core to generate the update enable output. The ALTMEMPHY megafunction uses this
circuit by default.
circuitry output.
Figure 7–25
6 bit
shows an example waveform of the update enable
DLL Counter Update
(Every 8 cycles)
Stratix IV Device Handbook Volume 1
7–45
Related parts for DK-DEV-4SGX230N
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
KIT DEV ARRIA II GX FPGA 2AGX125
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
KIT DEV CYCLONE III LS EP3CLS200
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
KIT DEV STRATIX IV FPGA 4SE530
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
KIT DEV FPGA 2AGX260 W/6.375G TX
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
KIT DEV MAX V 5M570Z
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
KIT DEV STRATIX V FPGA 5SGXEA7
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
KIT DEVELOPMENT STRATIX III
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
KIT DEV ARRIA GX 1AGX60N
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
KIT STARTER CYCLONE IV GX
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
KIT DEVELOPMENT STRATIX IV
Manufacturer:
Altera
Datasheet:
Part Number:
Description:
CPLD, EP610 Family, ECMOS Process, 300 Gates, 16 Macro Cells, 16 Reg., 16 User I/Os, 5V Supply, 35 Speed Grade, 24DIP
Manufacturer:
Altera Corporation
Datasheet:
Part Number:
Description:
CPLD, EP610 Family, ECMOS Process, 300 Gates, 16 Macro Cells, 16 Reg., 16 User I/Os, 5V Supply, 15 Speed Grade, 24DIP
Manufacturer:
Altera Corporation
Datasheet: