Gamecard: Difference between revisions
No edit summary |
Renumber cart pins to make end-end trace easier, at expense of dat lines becoming swizzled |
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! Description | ! Description | ||
|- | |- | ||
| | | 1, 2 | ||
| CD# | | CD# | ||
| Output | | Output | ||
| Single pin on cartridge side (hardwired to | | Card Detect; Single pin on cartridge side (hardwired to GND). Bridges pin 1 (GND) and 2 (CD#) on slot side as cartridge is inserted | ||
|- | |- | ||
| | | 3 | ||
| CLK | |||
| Input | |||
| Clock, 25MHz | |||
|- | |||
| 4 | |||
| RCLK | | RCLK | ||
| Output | | Output | ||
| Return clock; Game cartridge sends back CLK signal delayed by a few ns | | Return clock; Game cartridge sends back CLK signal delayed by a few ns | ||
|- | |- | ||
| | | 5 | ||
| CS# | | CS# | ||
| Input | | Input | ||
| Chip Select | | Chip Select | ||
|- | |- | ||
| | | 6 | ||
| DAT0 | | DAT1 | ||
| Inout | |||
| Data bus pin 1 | |||
|- | |||
| 7 | |||
| DAT0 | |||
| Inout | | Inout | ||
| Data bus pin 0 | | Data bus pin 0 | ||
|- | |- | ||
| | | 8 | ||
| VCC 3.3v | |||
| VCC 3.3v | |||
| Input | | Input | ||
| | | | ||
|- | |- | ||
| | | 9 | ||
| DAT2 | | DAT3 | ||
| Inout | |||
| Data bus pin 3 | |||
|- | |||
| 10 | |||
| DAT2 | |||
| Inout | | Inout | ||
| Data bus pin 2 | | Data bus pin 2 | ||
|- | |- | ||
| | | 11 | ||
| VCC 1.8v | |||
| VCC 1.8v | |||
| Input | | Input | ||
| | | | ||
|- | |- | ||
| | | 12 | ||
| DAT5 | | DAT5 | ||
| Inout | | Inout | ||
| Data bus pin 5 | | Data bus pin 5 | ||
|- | |||
| 13 | |||
| DAT4 | |||
| Inout | |||
| Data bus pin 4 | |||
|- | |- | ||
| | | 14 | ||
| DAT6 | | DAT6 | ||
| Inout | | Inout | ||
| Data bus pin 6 | | Data bus pin 6 | ||
|- | |- | ||
| | | 15 | ||
| DAT7 | | DAT7 | ||
| Inout | | Inout | ||
| Data bus pin 7 | | Data bus pin 7 | ||
|- | |- | ||
| | | 16 | ||
| GND | | GND | ||
| | | | ||
| | | | ||
|- | |- | ||
| | | 17 | ||
| RST# | | RST# | ||
| Input | | Input | ||
| Reset | | Reset | ||
|- | |- | ||
|} | |} | ||
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[[File:Card_slot.jpg|500px|thumb|right|Annotated slot pinout]] | [[File:Card_slot.jpg|500px|thumb|right|Annotated slot pinout]] | ||
This just maps the [[#Pinout|cartridge pinout]] onto the slot on the console. | |||
{| class="wikitable" | {| class="wikitable" |