Visible to Intel only — GUID: eis1395644206819
Ixiasoft
Visible to Intel only — GUID: eis1395644206819
Ixiasoft
2.6.3. Consider Power-Up State and Memory Initialization
Consider the power-up state of the different types of memory blocks if you are designing logic that evaluates the initial power-up values.
Memory Type | Output Registers | Power Up Value |
---|---|---|
M9K | Used | Zero (cleared) |
Bypassed | Zero (cleared) |
By default, the Intel® Quartus® Prime software initializes the RAM cells to zero unless you specify a .mif.
All memory blocks support initialization with a .mif. You can create .mif files in the Intel® Quartus® Prime software and specify their use with the RAM IP when you instantiate a memory in your design. Even if a memory is preinitialized (for example, using a .mif), it still powers up with its output cleared. Only the subsequent read after power up outputs the preinitialized values.
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