ALTDQ_DQS2 Features
ALTDQ_DQS2 Device Support
Resource Utilization and Performance
ALTDQ_DQS2 Parameter Settings
ALTDQ_DQS2 Data Paths
ALTDQ_DQS2 Ports
Dynamic Reconfiguration for ALTDQ_DQS2
Stratix V Design Example
Arria V Design Example
IP-Generate Command
ALTDQ_DQS2 IP Core User Guide Archives
Document Revision History
I/O Configuration Block Bit Sequence for Arria V GZ and Stratix V Devices
DQS Configuration Block Bit Sequence for Arria V GZ and Stratix V Devices
I/O Configuration Block Bit Sequence for Arria V and Cyclone V Devices
DQS Configuration Block Bit Sequence for Arria V and Cyclone V Devices
Example Usage of Dynamic Reconfiguration for ALTDQ_DQS2
ALTDQ_DQS2 PLL and DLL Ports
Port name |
Type |
Width |
Description |
---|---|---|---|
dll_delayctrl_in[] | Input |
7 |
Receives the 7-bit delay settings from the dll_delayctrlout port of the ALTDLL instance. This 7-bit signal controls delay through the DQS delay chains. Compilation error occurs if this port is not connected to a DLL. This port is supported in Arria V, Cyclone V, and Stratix V devices. |
fr_clock_in | Input |
1 |
Receives the full-rate clock signal from a clock pin, or the PLL clock output port. This port is supported in Arria V, Cyclone V, and Stratix V devices. |
hr_clock_in | Input |
1 |
Receives the half-rate clock signal from a clock pin, or the PLL clock output port. This port is supported in Arria V, Cyclone V, and Stratix V devices. |
Note: For more information about DLL in Stratix V device, refer to “Delay-Locked Loop” in the External Memory Interfaces in Stratix V Devices chapter of the Stratix V Device Handbook.
Note: For more information about PLL in Stratix V devices, refer to “PLL Specifications” in DC and Switching Characteristics for Stratix V Devices chapter of the Stratix V Device Handbook.