nl.kbna.dioscuri.module.dma
Class DMAController

java.lang.Object
  nl.kbna.dioscuri.module.dma.DMAController

public class DMAController
extends java.lang.Object

DMA controller
Class representing the structure of a DMA controller; each controller contains:
- 4 channels, eah having a DMA Request (DRQ) and DMA Acknowledge (DRQ) bit
- mask register (disables incoming DRQs)
- flipflop (additional address bit)
- status register (status of terminal counts, DMA requests)
- command register (operation control)

Field Summary

(package private) DMAChannel[]	channel
(package private) byte	commandRegister
(package private) boolean	ctrlDisabled
(package private) boolean[]	DACK
(package private) boolean[]	DRQ
(package private) boolean	flipflop
(package private) byte[]	mask
(package private) byte	statusRegister

Constructor Summary

DMAController()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

channel

DMAChannel[] channel

DRQ

boolean[] DRQ

DACK

boolean[] DACK

mask

byte[] mask

flipflop

boolean flipflop

statusRegister

byte statusRegister

commandRegister

byte commandRegister

ctrlDisabled

boolean ctrlDisabled

Constructor Detail

DMAController

public DMAController()