ECP was designed to increase speed over
EPP by using a DMA channel; therefore, when using ECP mode, you are using a DMA
channel.
Extended Capabilities Port (ECP) as designed to increase speed over EPP by using a DMA channel; therefore, when using ECP mode, you are using a DMA channel.
dma channel
ECP is faster (because it uses a DMA channel).
· Recall the ECP uses a DMA channel. Allow setup to keep DMA3 unless you suspect a conflict with another device trying to use DMA
# If you are having problems with resource conflicts, you could try disabling ECP mode for the parallel port. EPP mode gives good results and does not tie up a DMA channel.
Yes, DMA does bypass the CPU.
IRQ, DMA Channel, I/O Addresses, Memory Addresses
a customer as an IBM Desktop computer
The 8257 is a three channel DMA controller.
The DMA (Direct Memory Access) channel set for a sound card typically varies depending on the sound card model and the system configuration. Commonly used DMA channels for sound cards include channels 0, 1, 3, and 5, with channel 1 being a popular choice for many devices. To determine the specific DMA channel for a particular sound card, it's best to consult the device's manual or the system BIOS settings.
lol ur doing the same homework assignment for me as in MR Jahns CST1 computer class in Orange Park FL at OPHS :P the A+ Guide to Hardware is the book we are using That doesn't answer the question at all. You're no help The answer is 4.
From http://www.brainbell.com/tutors/A+/Hardware/Direct_Memory_Access_DMA.htm "DMA channels use the same rules as IRQs. Just as with the 8259 chip, DMA availability soon became a problem because an insufficient number of channels was available. A second DMA chip was added for 286-based computers. Just like the second IRQ chip, these two are cascaded, allowing a total of eight DMA channel assignments (usually referred to simply as DMA channels). The floppy disk drives on all computers use DMA channel 2."