发明名称 |
Flexible memory controller for graphics applications |
摘要 |
An implementation of a flexible memory controller for a graphics hardware system that supports flexible allocation of frame buffer resources. The buffer selection and steering to the channels of the modification logic are performed by a programmable controller. Furthermore, the controller is capable of performing pixel functions that require multiple frame buffer accesses per pixel. Still further, independent control is provided for read and write sequences. Also, separate control is provided for buffer selection and bus steering. This function is useful for controlling systems where the frame buffer resources are limited. The present invention allows for assigning various buffers alternate functions based on the application's requirements, and may vary on a per window basis.
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申请公布号 |
US5367632(A) |
申请公布日期 |
1994.11.22 |
申请号 |
US19920969634 |
申请日期 |
1992.10.30 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BOWEN, ANDREW D.;TANNENBAUM, DAVID C. |
分类号 |
G06F3/153;G09G5/36;G09G5/39;G09G5/393;(IPC1-7):G06F15/62 |
主分类号 |
G06F3/153 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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