Dreamcast:Connector Pinouts
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TODO: images of connectors.
Controller
| Pin | Name | Description |
|---|---|---|
| 1 | D0 | Serial Data |
| 2 | +5V | |
| 3 | GND | |
| 4 | Sense | Grounded by controller |
| 5 | D1 | Serial Data |
A/V Connector
| Pin | Description | TV Mode (V & Y/C Output) | SCART (15khz RGBS) | VGA (31khz RGBHV) |
|---|---|---|---|---|
| 1 | GND | Ground | ||
| 2 | Audio Right | Audio Right | ||
| 3 | Audio Left | Audio Left | ||
| 4 | +12v DC | +12v DC | ||
| 5 | +5v DC | +5v DC | ||
| 6 | VGA Select | N/C | N/C | GND |
| 7 | RGB Select | N/C | GND | GND |
| 8 | VSYNC | Present but unused | Present but unused | VGA VSYNC |
| 9 | HSYNC | Present but unused | Present but unused | VGA HSYNC |
| 10 | CSYNC | N/C? | CSYNC | N/C |
| 11 | C | S-Video Chroma | N/C? | N/C |
| 12 | Y | S-Video Luma | N/C? | N/C |
| 13 | V | Composite Video | N/C? | N/C |
| 14 | B | N/C | Blue | Blue |
| 15 | G | N/C | Green | Green |
| 16 | R | N/C | Red | Red |
Serial Port
| Pin | Description |
|---|---|
| 1 | +5v |
| 2 | SCK? |
| 3 | GND |
| 4 | Rx |
| 5 | Tx |
| 6 | RTS |
| 7 | CTS |
| 8 | GND? |
| 9 | RESET? |
| 10 | +3.3v |
Extension Port
Lower leftmost is pin 1, upper rightmost 50. Even pins along the top.
| Pin | Name | Description | Pin | Name | Description |
|---|---|---|---|---|---|
| 1 | +5v | 2 | +5v | ||
| 3 | +5v | 4 | +5v | ||
| 5 | MODEMCS | enable modem/lan adapter | 6 | IRQA | used by modem/lan adapter |
| 7 | ? | 8 | ? | ||
| 9 | ? | 10 | GND | ||
| 11 | GND | 12 | GND | ||
| 13 | IRQB | used by broadband adapter | 14 | LBE
WR |
Lower byte enable (output)
Write enable when MODEMCS low |
| 15 | ? | 16 | UBE
RD |
Upper byte enable
Read enable when MODEMCS low | |
| 17 | +3.3v | 18 | +3.3v | ||
| 19 | +3.3v | 20 | BTB | Bus termination B | |
| 21 | AEN | Address enable | 22 | BTA | Bus Termination A |
| 23 | GND | 24 | GND | ||
| 25 | AD15 | 26 | AD14 | ||
| ... | Address and Data multiplexed 16 bit bus | ||||
| 39 | AD1 | 40 | AD0 | ||
| 41 | GND | guard GND of system clock | 42 | GND | guard GND of system clock |
| 43 | CLK | System Clock (25MHz | 44 | GND | |
| 45 | GND | 46 | RESET | System Reset | |
| 47 | GND | 48 | GND | ||
| 49 | ? | 50 | ? | ||