DRAM Cartridge
From Yabause
The DRAM Cartridge is an add-on device that adds additional DRAM to the Saturn for caching content from games. It came in two different sizes: 8 Mbit and 32 Mbit.
Memory Mapping
It's mapped on the A-bus CS0 area. For the sake of simplicity, here's a list of the addresses used by developers.
| Address | Description |
|---|---|
| 0x22400000-0x225FFFFF | On a 8 Mbit cartridge, 4 Mbit is allocated here and is mirrored every 0x80000 bytes. On a 32 Mbit cartridge 16 Mbit is allocated here instead. |
| 0x22600000-0x227FFFFF | On a 8 Mbit cartridge, 4 Mbit is allocated here and is mirrored every 0x80000 bytes. On a 32 Mbit cartridge 16 Mbit is allocated here instead. |
| 0x24FFFFFF | Cartridge ID. This will be 0x5A for 8 Mbit cartridges or 0x5C for 32 Mbit cartridges. |
Games known to support the DRAM Cartridges
- Final Fight Revenge
