Atari ACSI DMA pinout

parallel interface

Pin	Name	Description
1	D0	Data 0
2	D1	Data 1
3	D2	Data 2
4	D3	Data 3
5	D4	Data 4
6	D5	Data 5
7	D6	Data 6
8	D7	Data 7
9	/CS	Chip Select
10	IRQ	Interrupt Request
11	GND	Ground
12	/RST	Reset
13	GND	Ground
14	ACK	Acknowledge
15	GND	Ground
16	A1	Address bit
17	GND	Ground
18	R/W	Read/Write
19	REQ	Data Request

The Atari uses this port to connect external Hard Disk following a specification call ASCI close to SCSI with a DB19M-DB19M cable. Connections in cable are straight 1-1 to 19-19 wires (not sure).

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19 pin D-SUB female connector

Pinouts.ru > Parallel interfaces pinouts listing > Pinout of Atari ACSI DMA and layout of 19 pin D-SUB male connector and 19 pin D-SUB female connector	Document status:	correct
Source(s) of this and additional information: Hardware Book, Lawrence Wright, Steve & Sally Blair Contributor: updated by Jean Louis-Guerin	1 reports
Last updated at Tue May 2 2006. Submit additions or corrections for this document.	Is this document correct or incorrect? What is your opinion?

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