Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 1/21/2022
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2.2.3.1. Same-Port Read-During-Write Mode

The same-port read-during-write mode applies to a single-port RAM or the same port of a true dual-port RAM.

Table 2.  Output Modes for Embedded Memory Blocks in Same-Port Read-During-Write ModeThis table lists the available output modes if you select the embedded memory blocks in the same-port read-during-write mode.
Output Mode Memory Type Description
"new data"

(flow-through)

M20K The new data is available on the rising edge of the same clock cycle on which the new data is written.
"don't care" M20K, MLAB The RAM outputs "don't care" values for a read-during-write operation.
Figure 14. Same-Port Read-During-Write: New Data ModeThis figure shows sample functional waveforms of same-port read-during-write behavior in the “new data” mode.