871 - Lattice Diamond: EBR: Why are the number of EBR blocks used more than I calculate for a True DPRAM?
Lattice Diamond: EBR: The difference between what you calculate for the number of EBR blocks required and what is eventually used to construct the memory is caused by the implemented hardware architecture having excess memory space available for use. For example, you could increase the width or depth some and not see any increase in the used memory space, because it is available for use, but the design requirements didn't use all the memory available.
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3538 - Diamond / EBR: Is there an easy way to modify some Embedded Block RAM (EBR) data before running bitgen with encryption enabled?
Solution:To modify the Embedded Block RAM (EBR) data through command line, use medit command. User can follow below steps- 1. Load the test project and check the path by using the "pwd" command in Tcl Console. By default, it navigates to the /test ...
3626 - LatticeECP2/M/ECP3/ECP5/ECP5-5G: Can we disable the Reset Signal for RAM_DQ, RAM_DP and RAM_DP_TRUE in our design?
The reset signals for the Embedded Block RAM (EBR) based RAM_DQ, RAM_DP, and RAM-DP_TRUE reset only the output registers, not the EBR memory contents. So, if you do not want to reset the output registers of these modules in your design, you can ...
1412 - Can I implement Error Check Codes in the Embedded Block Ram (EBR) based memory modules?<BR>
IPexpress allows you to implement Error Check Codes (ECC) in the Embedded Block Ram (EBR) based memory modules. There is a checkbox to enable ECC in the configuration tab for the module. If you choose to use ECC, you will have a 2-bit error signal ...
1156 - How can I specify what type of PLL is used for a LatticeECP2/M FPGA? <BR>
Beginning in version 7.1 of ispLEVER, the user can specify explicitly whether the software will create a GPLL or an SPLL for the LatticeECP2/M when creating the PLL using IPExpress. This is done with a radio style selector button under the Delay ...
3905 - Distributed DPRAM IP v3.6:What is the use of the following attribute in IPExpress generated DPRAM HDL file? attribute NGD_DRC_MASK of Structure : architecture is 1.
Synthesis of the IPexpress generated code (HDL), gives several warning messages and makes it hard for the user to see “real” warning messages. In order to address this issue, the IPexpress generated module has a NGD_DRC_MASK attribute. This attribute ...