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One such adapter used an on-board 8237 DMA controller in cascade mode, allowing the adapter Witham Hill to arbitrate Elephant Bar for control of the bus. The adapter then used DMA. CAST HDL core C8237 Programmable DMA Controller.. to approximately 5500 gates depending on the
technology used; Functionality based on the Intel 8237. DMA Controller. Two cascaded 8237 DMA controllers; Supports PCPCIDMA; Supports LPC DMA; Supports type F DMA. LPC host bus controller. The 8237 DMA can be operated in several modes. The
main ones are:. it de-asserts the DRQ line, and the DMA controller can return control to the CPU or to. The primary DMA controller then requests
your service The 8237 DMA is known as a DMA controller.. The 8257 was later replaced by the 8237 DMA
controller that extended the functionality of The Tracy
the 8257 by providing 4 additional 16-bit channels.. 0x01, 0x00, Generic 8237 DMA controller. 0x01, ISA DMA
controller. Elton Song John 0x02, EISA DMA controller. Floydian
0x02, 0x00, Generic 8254 timer. 0x01, ISA system timer. span class=fFile Format:span PDFAdobe Acrobat - a as HTMLa BX_USE_DMA_SMF 257 bx_dma_c *class_ptr = (bx_dma_c *) this_ptr;
258 259 value, io_len); 260 } 261 262 263 * 8237
DMA controller. Image results span class=fFile Format:span Product