Kenneth R Kelly

US Patent:

6691216, Feb 10, 2004

Filed:

Oct 24, 2001

Appl. No.:

10/004492

Inventors:

Kenneth C. Kelly - Richmond TX
Irvinderpal S. Ghai - Missouri City TX
Jay B. Reimer - Houston TX
Tai Huu Nguyen - Houston TX
Harland Glenn Hopkins - Missouri City TX
Yi Luo - Stafford TX
Jason A. T. Jones - Houston TX
Dan K. Bui - Sugarland TX
Patrick J. Smith - Houston TX
Kevin A. McGonagle - Sugarland TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G06F 1578

US Classification:

711167, 711152, 713502, 710305, 709212

Abstract:

A multi-core DSP device includes a shared program memory to eliminate redundancy and thereby reduce the size and power consumption of the DSP device. Because each of the program cores typically executes the same software program, memory requirements may be reduced by having multiple processor cores share only a single copy of the software. Accordingly, a program memory couples to each of the processor cores by a corresponding instruction bus. Preferably the program memory services two or more instruction requests in each clock cycle. Data is preferably stored in separate memory arrays local to the processor core subsystems and accessible by the processor cores via a dedicated data bus. In one specific implementation, the program memory includes a wrapper that can perform one memory access in the first half of each clock cycle and a second memory access in the second half of each clock cycle. A designated set of instruction buses is allowed to arbitrate for only the first access, and the remaining instruction buses are allowed to arbitrate for only the second access. In this manner, a reduction in on-board memory requirements and associated power consumption may be advantageously reduced.

Address:

1046 Martin St, Houston, TX 77018

Phone:

7136882723

VIN:

3N1BC13E27L424051

Make:

NISSAN

Model:

VERSA

Year:

2007