dioscuri.module.dma
Class DMA16Handler

java.lang.Object
  dioscuri.module.dma.DMA16Handler

public abstract class DMA16Handler
extends java.lang.Object

Handler for the slave DMA controller, providing implementations for 16-bit read and write functionality
This handler will be registered with the DMA class to provide device-specific methods for reading (memory -> device) and writing (device -> memory) a word via DMA.

Constructor Summary

DMA16Handler()

Method Summary

abstract void	dma16ReadFromMem(byte[] data) Device-specific implementation of the 16-bit DMA read functionality. This provides a way for DMA to pass a word read from memory (by way of DMA request) to the device for further processing.
abstract byte[]	dma16WriteToMem() Device-specific implementation of the 16-bit DMA write functionality. This provides a way for DMA to write a word to memory (by way of DMA request) passed from the device.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DMA16Handler

public DMA16Handler()

Method Detail

dma16ReadFromMem

public abstract void dma16ReadFromMem(byte[] data)

Device-specific implementation of the 16-bit DMA read functionality.
This provides a way for DMA to pass a word read from memory (by way of DMA request) to the device for further processing.

Parameters:

data - Word from memory that is passed to the device for handling

dma16WriteToMem

public abstract byte[] dma16WriteToMem()

Device-specific implementation of the 16-bit DMA write functionality.
This provides a way for DMA to write a word to memory (by way of DMA request) passed from the device.

Returns:

Word from device that will be written to memory