Title:
DMA DEVICE WITH LOCAL PAGE TABLE
Document Type and Number:
WIPO Patent Application WO1998030969
Kind Code:
A3
Abstract:
A DMA device which can quickly access main memory over a system bus without requiring an allocation of a contiguous block of memory on start-up. This is accomplished by providing a copy of the host microprocessor's page table to the DMA device for the portion of memory allocated to it. The DMA device preferably stores at least a portion of the page table internally, with any remainder of the page table being stored in main memory at an address stored in said DMA device.
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Inventors:
ROSSUM DAVID P (US)
TAN KHIR HIEN (US)
TAN KHIR HIEN (US)
Application Number:
PCT/US1998/000458
Publication Date:
November 19, 1998
Filing Date:
January 06, 1998
Export Citation:
Assignee:
CREATIVE TECH LTD (SG)
ROSSUM DAVID P (SG)
TAN KHIR HIEN (SG)
ROSSUM DAVID P (SG)
TAN KHIR HIEN (SG)
International Classes:
G06F12/08; G06F12/10; (IPC1-7): G06K/
Foreign References:
| US4669043A | 1987-05-26 | |||
| US5535341A | 1996-07-09 |
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