[net.micro.6809] DMA for CoCo?

dyer@wivax.UUCP (Stephen Dyer) (11/06/83)

I am a complete novice as far as hardware goes.  Does the CoCo have the
capability to support DMA devices?  I have heard that some micro
implementations cannot use DMA because of inherent design decisions (like,
low cost.) Is this true for the CoCo?  Would microsoft!danm who is writing
the OS-9 device driver for the unspecified hard disk care to comment on its DMA
capability?

/Steve Dyer
decvax!bbncca!sdyer

markp@tekig1.UUCP (Mark Pease) (11/07/83)

If Radio Shack would have run the BA BS line out of the slot, DMA 
could have been done by using the HALT- HALT ACKNOWLEDGE handshake
from the 6809E (I guess that the two line could be routed "over the
top" with some sort of connecter on it).

		      Mark Pease
		      tektronix!tekig!tekig1!markp