Cyclone® V Device Handbook: Volume 1: Device Interfaces and Integration

ID 683375
Date 10/18/2023
Public
Document Table of Contents

2.9. Memory Blocks Address Clock Enable Support

The embedded memory blocks support address clock enable, which holds the previous address value for as long as the signal is enabled (addressstall = 1). When the memory blocks are configured in dual-port mode, each port has its own independent address clock enable. The default value for the address clock enable signal is low (disabled).

Figure 16. Address Clock EnableThis figure shows an address clock enable block diagram. The address clock enable is referred to by the port name addressstall.


Figure 17. Address Clock Enable During Read Cycle WaveformThis figure shows the address clock enable waveform during the read cycle.


Figure 18. Address Clock Enable During the Write Cycle WaveformThis figure shows the address clock enable waveform during the write cycle.