Method and system for accessing a single port memory

A method of accessing a single port memory comprising:

• polling each of a plurality of memory requesters to enable each of the plurality of memory requesters to access a single port memory during its respective pre-allocated time slot;
• receiving a plurality of read commands for memory read access from the plurality of requesters;
• storing a respective plurality of parameters corresponding to each of the plurality of read commands including a request length in a memory read command queue;
• retrieving the parameters corresponding to one of the read commands from the memory read command queue when the single port memory provides the data corresponding to that read command;
• and
• providing one or more of the parameters from the memory read command queue while providing the data from the memory.

A system for controlling access to. a single-port memory, comprising:

• a processor including a memory access scheduler, the memory access scheduler configured to pre-allocate one or more time slots to each of a plurality of memory requesters and poll the plurality of memory requesters to enable each of the plurality of memory requesters to access a single port memory during its respective pre-allocated time slot,
• the memory access scheduler configured to grant each one of the plurality of memory requesters access to the single-port memory during its pre-allocated time slot, if that requester requests access to the single-port memory,
• the memory access scheduler configured to grant an excess bandwidth requestor access to the single port memory during a time slot allocated to one of the plurality of memory requesters that does not request access to the single-port memory during its pre-allocated time slot;
• and
• a memory controller interface connected to the memory access scheduler for controlling access to the single-port memory by the memory requester to which access is granted.

A computer readable storage medium encoded with computer program code, wherein, when the computer program code is executed by a processor, the processor performs a method for controlling access to a single-port memory, comprising the steps of:

• allocating a plurality of time slots to a plurality of memory requesters so that each of the plurality of memory requesters has a pre-allocated time slot;
• polling each of the plurality of memory requesters to enable each of the plurality of memory requesters to access a single port memory during its respective pre-allocated time slot;
• granting each one of the plurality of memory requesters access to the single-port memory during its pre-allocated time slot, if that requester requests access to the single-port memory;
• and
• granting an excess bandwidth requestor access to the single port memory during a time slot allocated to one of the plurality of memory requesters that does not request access to the single-port memory during its pre-allocated time slot.

A computer readable storage medium encoded with computer program code, wherein, when the computer program code is executed by a processor, the processor performs a method of accessing a single port memory comprising:

• polling each of a plurality of memory requesters to enable each of the plurality of memory requesters to access a single port memory during its respective pre-allocated time slot;
• receiving a plurality of read commands for memory read access from the plurality of requesters;
• storing a respective plurality of parameters corresponding to each of the plurality of read commands including a request length in a memory read command queue;
• retrieving the parameters corresponding to one of the read commands from the memory read command queue when the single port memory provides the data corresponding to that read command;
• and
• providing one or more of the parameters from the memory read command queue while providing the data from the memory.