Difference between revisions of "Ports and Connectors"
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== Rear Panel == | == Rear Panel == | ||
| + | |||
| + | === 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 if you are adding a floppy drive, hard drive, etc. | ||
| + | |||
| + | === Power Switch === | ||
| + | Just an ordinary rocker switch. | ||
| + | |||
| + | === DVI-I === | ||
| + | The Video connector is DVI with digital and analog output suitable for use with passive VGA and HDMI adaptors. | ||
| + | |||
| + | == Internal == | ||
| + | === Serial === | ||
| + | The 8-pin serial header follows the DTK/INTEL standard: | ||
| + | * https://pinoutguide.com/Motherboard/rs232_header_pinout.shtml | ||
Revision as of 10:33, 15 February 2020
Contents
Front Panel
RCA Line In
These are standard RCA Line-In jacks, nominal 2v P-P.
Headphone Jack
Standard 1/8" stereo headphone jack.
SD Card
Standard SD Card jack 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
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 if you are adding a floppy drive, hard drive, etc.
Power Switch
Just an ordinary rocker switch.
DVI-I
The Video connector is DVI with digital and analog output suitable for use with passive VGA and HDMI adaptors.
Internal
Serial
The 8-pin serial header follows the DTK/INTEL standard:
