METHOD AND SYSTEM OF GROUPING INTERRUPTS FROM A TIME-DEPENDENT DATA STORAGE MEANS

• US 20090282179A1
• Filed: 06/22/2006
• Published: 11/12/2009
• Est. Priority Date: 06/22/2006
• Status: Active Grant

• Current Assignee: NXP USA, Inc. (NXP Semiconductors NV)
• Original Assignee: Freescale Semiconductor, Inc. (NXP Semiconductors NV)
• Inventors: Patzelt, Christoph, Litovtchenko, Vladimir, Moeller, Dirk
• Granted Patent: US 8,001,309 B2
• Time in Patent Office: Days
• US Class Current: 710/262
• CPC Class Codes: G06F 13/24 using interrupt G06F13/32 takes precedence
• CPC Class Codes: G06F 9/4812 by interrupt, e.g. masked

Abstract

A method of grouping interrupts from a time-dependent data storage means in accordance with the types of the interrupts, the method comprising the steps of providing each part of the data storage means with an indicator of an event associated with the part, generating interrupts upon the occurrence of events in different parts of the data storage means, allocating interrupts associated with substantially the same part of the data storage means to a same processing means.

Claims

1. A method of grouping interrupts of one or more types for real time applications data from a data storage means in accordance with the types of the interrupt, said storage means comprising a first part and a second part, said storage means being able to send data coming from a host processor to one or more communication channels and to send interrupts to the host processor, the method comprising:

providing each part of the data storage means with an indicator of an event associated with the part;

generating interrupts upon the occurrence of events in different parts of the data storage means;

allocating interrupts associated with the same part of the data storage means to a same processing means;

wherein generating interrupts comprises generating a first type of interrupt to require updated data from the host processor and comprising generating a second type of interrupt to indicate to the host processor finalization of data transmission to the communication channel.

2. The method of claim 1, wherein the method is operated within a time division multiple access (TDMA) protocol.

3. The method as claimed in claim 1, wherein the method is operated within a communication protocol such as the FlexRay (trademark) protocol.

10. The method as claimed in claim 2, wherein the method is operated within a communication protocol such as the FlexRay (trademark) protocol.

11. The method as claimed in claim 3, wherein the method is operated within a communication protocol such as the FlexRay (trademark) protocol.

4. An interrupt grouping system for a data storage system, comprising:

a means for indicating an event associated with each part of the data storage system;

a means of generating interrupts from the indicators upon the occurrence of an event in a given part of the data storage system;

a means of allocating interrupts associated with the same part of the data storage means to a same processing means, wherein the data storage system is a double buffer.

5. The interrupt grouping system as claimed in claim 4, wherein a first means for indicating and a second means for indicating are respectively provided to the host-side and transmit-side of the double buffer.

6. The interrupt grouping system as claimed in claim 5 wherein the means for indicating for the transmit-side of the double buffer indicates that the data in the transmit-side has been transmitted.

7. The interrupt grouping system as claimed in claim 6 wherein the means for indicating for the host-side of the double buffer indicates that the host-side requires updating.

8. The interrupt grouping system as claimed in claim 4 wherein the data storage system transmits data in accordance with a time division multiple access (TDMA) protocol.

9. The interrupt grouping system as claimed in claim 4 wherein the data storage system transmits data in accordance with a communication protocol such as the FlexRay (trademark) protocol.

12. The interrupt grouping system as claimed in claim 7 wherein the means for indicating for the host-side of the double buffer indicates that the host-side requires updating.

13. The interrupt grouping system as claimed in claim 5 wherein the data storage system transmits data in accordance with a time division multiple access (TDMA) protocol.

14. The interrupt grouping system as claimed in claim 6 wherein the data storage system transmits data in accordance with a time division multiple access (TDMA) protocol.

15. The interrupt grouping system as claimed in claim 7 wherein the data storage system transmits data in accordance with a time division multiple access (TDMA) protocol.

16. The interrupt grouping system as claimed in claim 8 wherein the data storage system transmits data in accordance with a time division multiple access (TDMA) protocol.

17. The interrupt grouping system as claimed in claim 5 wherein the data storage system transmits data in accordance with a communication protocol such as the FlexRay (trademark) protocol.

18. The interrupt grouping system as claimed in claim 6 wherein the data storage system transmits data in accordance with a communication protocol such as the FlexRay (trademark) protocol.

19. The interrupt grouping system as claimed in claim 7 wherein the data storage system transmits data in accordance with a communication protocol such as the FlexRay (trademark) protocol.

20. The interrupt grouping system as claimed in claim 8 wherein the data storage system transmits data in accordance with a communication protocol such as the FlexRay (trademark) protocol.