TW268113B - Dma emulation for non-dma capable interface cards - Google Patents
Dma emulation for non-dma capable interface cardsInfo
- Publication number
- TW268113B TW268113B TW83110515A TW83110515A TW268113B TW 268113 B TW268113 B TW 268113B TW 83110515 A TW83110515 A TW 83110515A TW 83110515 A TW83110515 A TW 83110515A TW 268113 B TW268113 B TW 268113B
- Authority
- TW
- Taiwan
- Prior art keywords
- dma
- memory
- data
- host
- handling device
- Prior art date
Links
Landscapes
- Bus Control (AREA)
Abstract
A method and means are provided for simulating a direct memory access (DMA) function to access memory in a host computer having a DMA controller for the purpose of enabling the transfer of data between the host memory and a computer accessory data handling device not capable of DMA operation that can be operably connected to the host including determining the location in the host memory for data to be transferred from the host memory to the accessory data handling device or from the accessory data handling device to the host memory by reading the memory address contents of the DMA controller. Data is read data from the host memory at the address specified in the DMA controller and written to the accessory data handling device or read from the accessory data handling device and written to the host memory at the address specified by the DMA controller, respectively. The host computer is informed that a DMA operation corresponding to the data transfer has been completed when the data transfer required has been completed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW83110515A TW268113B (en) | 1994-11-14 | 1994-11-14 | Dma emulation for non-dma capable interface cards |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW83110515A TW268113B (en) | 1994-11-14 | 1994-11-14 | Dma emulation for non-dma capable interface cards |
Publications (1)
Publication Number | Publication Date |
---|---|
TW268113B true TW268113B (en) | 1996-01-11 |
Family
ID=51396858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW83110515A TW268113B (en) | 1994-11-14 | 1994-11-14 | Dma emulation for non-dma capable interface cards |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW268113B (en) |
-
1994
- 1994-11-14 TW TW83110515A patent/TW268113B/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
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MK4A | Expiration of patent term of an invention patent |