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| + | [[File:Gamecard.jpg|thumb|right|A 3DS gamecard]] |
| + | [[File:GamecardPhy.jpg|thumb|right|Close-up of PCB]] |
| + | |
| ===Physical interface=== | | ===Physical interface=== |
| The 3DS gamecards have the same physical interface as regular DS and DSi gamecards. There is only a minor cosmetic difference in the plastic case, which has a small extruding notch on the top-right side. As such, it prevents insertion of the gamecard into old Nintendo DS or DSi systems. | | The 3DS gamecards have the same physical interface as regular DS and DSi gamecards. There is only a minor cosmetic difference in the plastic case, which has a small extruding notch on the top-right side. As such, it prevents insertion of the gamecard into old Nintendo DS or DSi systems. |
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| When modifying the case so that the 3DS gamecard fits in a DS or DSi system, those systems will refuse to detect the gamecard and show no banner icon. | | When modifying the case so that the 3DS gamecard fits in a DS or DSi system, those systems will refuse to detect the gamecard and show no banner icon. |
| | | |
− | [[File:Gamecard.jpg|thumb|right|A 3DS gamecard]]
| + | {| class="wikitable" border="1" |
− | [[File:GamecardPhy.jpg|thumb|right|Close-up of PCB]]
| + | |- |
| + | ! Pin |
| + | ! Name |
| + | ! Description |
| + | |- |
| + | | 1 |
| + | | GND |
| + | | Ground |
| + | |- |
| + | | 2 |
| + | | CLK |
| + | | Clock. Frequencies 6.7MHz and 4.2MHz) |
| + | |- |
| + | | 3 |
| + | | NC |
| + | | Not connected. Possibly used to program cards. |
| + | |- |
| + | | 4 |
| + | | RCS |
| + | | ROM select, active low. Pulled low to start a ROM transfer. |
| + | |- |
| + | | 5 |
| + | | RST |
| + | | Reset, active low. |
| + | |- |
| + | | 6 |
| + | | ECS |
| + | | Savegame chip select, active low. Pulled low to start a savegame SPI transfer. |
| + | |- |
| + | | 7 |
| + | | IRQ |
| + | | Removal detection. |
| + | |- |
| + | | 8 |
| + | | VCC |
| + | | Powersupply 3.3V. |
| + | |- |
| + | | 9 |
| + | | DAT0 |
| + | | Bidirectional data bus. |
| + | |- |
| + | | 10 |
| + | | DAT1 |
| + | | Bidirectional data bus. |
| + | |- |
| + | | 11 |
| + | | DAT2 |
| + | | Bidirectional data bus. |
| + | |- |
| + | | 12 |
| + | | DAT3 |
| + | | Bidirectional data bus. |
| + | |- |
| + | | 13 |
| + | | DAT4 |
| + | | Bidirectional data bus. |
| + | |- |
| + | | 14 |
| + | | DAT5 |
| + | | Bidirectional data bus. |
| + | |- |
| + | | 15 |
| + | | DAT6 |
| + | | Bidirectional data bus / SPI data from savegame chip. |
| + | |- |
| + | | 16 |
| + | | DAT7 |
| + | | Bidirectional data bus / SPI data to savegame chip. |
| + | |- |
| + | | 17 |
| + | | GND |
| + | | Ground |
| + | |} |
| + | |
| | | |
| ===Protocol=== | | ===Protocol=== |
| The communication protocol between the 3DS system and the 3DS gamecard has changed completely in comparison with the DS and DSi gamecard communication protocol. | | The communication protocol between the 3DS system and the 3DS gamecard has changed completely in comparison with the DS and DSi gamecard communication protocol. |