Difference between revisions of "Ports and Connectors"
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== Rear Panel == | == Rear Panel == | ||
| + | |||
| + | === Power Switch === | ||
| + | Just an ordinary rocker switch. | ||
=== Power === | === Power === | ||
| − | The power connector is a 12v center-positive 2.5mm barrel connector. The bare board should operate on as little as 500ma, but you should plan on more | + | The power connector is a 12v center-positive 2.5mm barrel connector. The bare board should operate on as little as 500ma, but you should plan on more like 3A to cover adding a floppy drive, hard drive, etc. |
| − | === | + | === PS/2 Keyboard and Mouse === |
| − | + | PS/2 port 0 (Purple) -- nominal keyboard port | |
| + | PS/2 port 1 (Green) -- nominal mouse port | ||
=== DVI-I === | === DVI-I === | ||
The Video connector is DVI with digital and analog output suitable for use with passive VGA and HDMI adaptors. | The Video connector is DVI with digital and analog output suitable for use with passive VGA and HDMI adaptors. | ||
| + | |||
| + | === Parallel Port === | ||
| + | IBM Standard DB25 EPP | ||
| + | |||
| + | === Serial Port === | ||
| + | IBM Standard DB9 RS232; all pins implemented. | ||
== Internal == | == Internal == | ||
Revision as of 11:00, 15 February 2020
Contents
Front Panel
RCA Line In
These are standard RCA Line-In jacks, 2v P-P nominal.
Headphone Jack
Standard 1/8" stereo headphone jack.
SD Card
Standard SD Card slot using custom controller logic instantiated on an FPGA.
Joystick Ports
The joystick ports, from left to right, are numbered 1,2,3,4.
- Ports 1 and 2 may be electrically configured as 12 bit (S)NES style ports or as TTL ports.
- Ports 2 and 4 are ATARI/C64 style ports and include analog inputs.
| DB9 | 1&2 (S)NES | 1&2 TTL | 3&4 ATARI/C64 |
| 1 | ignored | UP | UP |
| 2 | ignored | DOWN | DOWN |
| 3 | ignored | LEFT | LEFT |
| 4 | ignored | RIGHT | RIGHT |
| 5 | LATCH | Button 1 | POT-Y |
| 6 | DATA | Button 0 | BUTTON |
| 7 | +5 | +5 | +5 |
| 8 | GND | GND | GND |
| 9 | CLK | Button 2 | POT-X |
Reset Switch
"Power" LED
The power LED is under software control.
Rear Panel
Power Switch
Just an ordinary rocker switch.
Power
The power connector is a 12v center-positive 2.5mm barrel connector. The bare board should operate on as little as 500ma, but you should plan on more like 3A to cover adding a floppy drive, hard drive, etc.
PS/2 Keyboard and Mouse
PS/2 port 0 (Purple) -- nominal keyboard port PS/2 port 1 (Green) -- nominal mouse port
DVI-I
The Video connector is DVI with digital and analog output suitable for use with passive VGA and HDMI adaptors.
Parallel Port
IBM Standard DB25 EPP
Serial Port
IBM Standard DB9 RS232; all pins implemented.
Internal
Serial
The 8-pin serial header follows the DTK/INTEL standard:
