Invention Grant
US08099580B2 Translation look-aside buffer with a tag memory and method therefor
有权
具有标签记忆的翻译后备缓冲器及其方法
- Patent Title: Translation look-aside buffer with a tag memory and method therefor
- Patent Title (中): 具有标签记忆的翻译后备缓冲器及其方法
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Application No.: US12480809Application Date: 2009-06-09
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Publication No.: US08099580B2Publication Date: 2012-01-17
- Inventor: Ravindraraj Ramaraju , Jogendra C. Sarker , Vu N. Tran
- Applicant: Ravindraraj Ramaraju , Jogendra C. Sarker , Vu N. Tran
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc
- Current Assignee: Freescale Semiconductor, Inc
- Current Assignee Address: US TX Austin
- Agent James L. Clingan, Jr.
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
A translation look-aside buffer (TLB) has a TAG memory for determining if a desired translated address is stored in the TLB. A TAG portion is compared to contents of the TAG memory without requiring a read of the TAG memory because the TAG memory has a storage portion that is constructed as a CAM. For each row of the CAM a match determination is made that indicates if the TAG portion is the same as contents of the particular row. A decoder decodes an index portion and provides an output for each row. On a per row basis the output of the decoder is logically combined with the hit/miss signals to determine if there is a hit for the TAG memory. If there is a hit for the TAG memory, a translated address corresponding to the index portion of the address is then output as the selected translated address.
Public/Granted literature
- US20100312957A1 TRANSLATION LOOK-ASIDE BUFFER WITH A TAG MEMORY AND METHOD THEREFOR Public/Granted day:2010-12-09
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