IP Library Granted Patent US 7,788,432
Granted Patent B2
US 7,788,432 · App. 12/244,430 · Granted Aug 31, 2010

System for performing a serial communication between a central control block and satellite components

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Quick Facts
Patent No.
US 7,788,432
App. No.
12/244,430
Granted
Aug 31, 2010
Kind
B2
Abstract

The various embodiments described herein relate to a system for performing a serial communication between a central control block and a plurality of satellite components within a semiconductor chip. The system comprises at least one logical ring that serially connects the satellite components to the central control block. The system further comprises a centralized timer. The satellite components aid the system in obeying protocols and performing direct accesses to and/or from registers. The logical ring comprises at least one data channel that is provided for transmitting data packets and address packets. Single-envelope transactions are implemented. Errors of the satellite components associated with the single-envelope transactions are reported to the central control block as additional acknowledgement information.

Claims (19)

1. A system for performing a serial communication between a central control block and a plurality of satellite components within a semiconductor chip, the system comprising:

at least one physical logical ring that serially connects the satellite components to the central control block, the at least one logical ring comprising at least one data channel provided for transmitting data packets and address packets; and

a centralized timer;

wherein the satellite components cooperate with the system for obeying protocols and performing direct accesses to or from registers, wherein single-envelope transactions are implemented, and wherein errors of the satellite components associated with the single-envelope transactions are reported to the central control block as additional acknowledgement information.

2. The system according to claim 1 , wherein the data channel is formed as a serial bus.

3. The system according to claim 1 , wherein the data channel is formed as a one-wire serial bus.

4. The system according to claim 1 , wherein the logical ring includes a control channel.

5. The system according to claim 4 , wherein the control channel is formed as a serial bus.

6. The system according to claim 4 , wherein the control channel is formed as a one-wire serial bus.

7. The system according to claim 4 , wherein the control channel is provided for turning on or off a local clock.

8. The system according to claim 4 , wherein the control channel is provided for turning on or off a power gate of the satellite components.

9. The system according to claim 4 , wherein the control channel is provided for resetting the system.

10. The system according to claim 4 , wherein the control channel is provided for checking the functionality of the logical ring.

11. The system according to claim 1 , wherein the centralized timer is implemented within the central control block.

12. The system according to claim 1 , wherein the central control block is provided for serving one or more logical rings.

13. The system according to claim 1 , wherein a selection of one or more logical rings from several logical rings depends on additional information from outside of the several logical rings.

14. The system according claim 1 , wherein the system is realized in hardware.

15. The system according to claim 1 , wherein the system is realized in a combination of hardware and software.

16. A computer program product stored on a computer-usable medium, comprising a computer-readable program causing a computer to implement the system according to claim 1 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 10, 2014
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: LENOVO INTERNATIONAL LIMITED
Reel/Frame 034194/0291 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2008
From: LUDEWIG, RALF; LE, THUYEN; WEBEL, TOBIAS; GUNGL, KLAUS PETER
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 021803/0536 →