A micro-computer inspired by the Atari ST and Amiga 500.
The RBT-16 is a micro-computer designed to be an Atari STe and Amiga 500
successor, not limited by their technology and history, but by what we have
and know today. The RBT-16 is a middle-term between 3 worlds: Atari,
Commodore and IBM.
Our design goal is to have something fun and interesting to play and use.
- CPU: Motorola 68010 at ~8/12MHz
- RAM: Shipped with 512KB of Static RAM. Eight SRAM slots of 512KB, up to 4MB max RAM
- ROM: 512KB EEPROM; BIOS/Kernel
CPU can be boosted by software up to 12MHz
- 4 x Expansion slots (Custom Bus)
- 2 x SNES controllers
- 2 x PS/2 mouse and keyboard ports
- 1 x I2C port
- 1 x SD Card slot
- 2 x MIDI DIN 5-pin (IN/OUT)
- 1 x 3.5mm audio jack
- 2 x RCA Jacks (Stereo)
- The RBT-16 is shipped with 512KB SRAM, but can expaned up to 4MB.
- Memory is managed by a PMMU chip on board.
| Address Range | Size | Description |
|---|---|---|
| 0x00'0000-0x07'ffff | 512KB | Default 512KB RAM chip (Slot 0) |
| 0x08'0000-0x3f'ffff | 3.5MB | RAM Expansion slots (Slots 1-7) |
| 0x40'0000-0xef'ffff | 11MB | Reserved (Bus Error) |
| 0xf0'0000-0xf7'ffff | 512KB | System ROM (BIOS/Kernel) |
| 0xf8'0000-0xf8'ffff | 64KB | Video MMIO (VDP) |
| 0xf9'0000-0xf9'ffff | 64KB | Audio MMIO (APU) |
| 0xfa'0000-0xfa'ffff | 64KB | I/O registers (Controllers, SD Card, etc...) |
| 0xfb'0000-0xff'ffff | 320KB | Reserved / Debug I/O |
RAM is mirrored on disabled expansion slots. It wraps around at invalid address range Memory Map is subject to changes