Atari ACSI DMA
From HwB
(Difference between revisions)
(Added description for pin 16.) |
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| Line 44: | Line 44: | ||
| 15 || GND || Ground | | 15 || GND || Ground | ||
|- | |- | ||
| − | | 16 || A1 || | + | | 16 || A1 || Address 1 |
|- | |- | ||
| 17 || GND || Ground | | 17 || GND || Ground | ||
| Line 52: | Line 52: | ||
| 19 || REQ || Data Request | | 19 || REQ || Data Request | ||
|} | |} | ||
| + | |||
| + | Notes: | ||
| + | * Pin 16: This signal tells the device's DMA controller whether the device address is set on bus with all commands (A1=Low) or whether parameter bytes are handled (usually 5 parameter bytes;A1= high). | ||
== Contributions == | == Contributions == | ||
| Line 57: | Line 60: | ||
* [mailto:[email protected] Lawrence Wright] | * [mailto:[email protected] Lawrence Wright] | ||
* [mailto:[email protected] Steve & Sally Blair] | * [mailto:[email protected] Steve & Sally Blair] | ||
| + | * Grahame | ||
[[Category:Connector]] | [[Category:Connector]] | ||
[[Category:Storage]] | [[Category:Storage]] | ||
[[Category:Obsolete]] | [[Category:Obsolete]] | ||
Latest revision as of 18:08, 11 July 2008
Used to connect Laser printers or Harddrives.
Pinout
19 PIN D-SUB ?? at the Computer.
19 PIN D-SUB ?? at the Devices.
| 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 1 |
| 17 | GND | Ground |
| 18 | R/W | Read/Write |
| 19 | REQ | Data Request |
Notes:
- Pin 16: This signal tells the device's DMA controller whether the device address is set on bus with all commands (A1=Low) or whether parameter bytes are handled (usually 5 parameter bytes;A1= high).