800 Titan Proccesing Unit (TPU)
800 : Titan Proccesing Unit (TPU)
- Author: SPC Engineering Club
- Description: 16-bit computer with SPI memory based on the Nand2Tetris course.
- GitHub repository
- Open in 3D viewer
- Clock: 66500000 Hz
How it works
- The Titan Processing Unit (TPU) fethces instructions via SPI from an off-chip Memory module. This module stores the ROM and RAM partitions. The instructions are executed by the CPU once the data is received. This CPU is a working implementation of the Hack computer from the Nand2Tetris course (with some modifications for phyisical feasibility). More details will come soon.
How to test
- Load programs for the computer to run to the RP2040 ROM section (0000 to 7FFE). We will release a tool for this.
External hardware
- Simulated SPI RAM on RP2040 by Michael Bell.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | GENERAL PURPOSE INPUT [0] | GENERAL PURPOSE OUTPUT [0] | CS |
| 1 | GENERAL PURPOSE INPUT [1] | GENERAL PURPOSE OUTPUT [1] | MOSI |
| 2 | GENERAL PURPOSE INPUT [2] | GENERAL PURPOSE OUTPUT [2] | MISO |
| 3 | GENERAL PURPOSE INPUT [3] | GENERAL PURPOSE OUTPUT [3] | SCK |
| 4 | GENERAL PURPOSE INPUT [4] | GENERAL PURPOSE OUTPUT [4] | GENERAL PURPOSE I/O [0] |
| 5 | GENERAL PURPOSE INPUT [5] | GENERAL PURPOSE OUTPUT [5] | GENERAL PURPOSE I/O [1] |
| 6 | GENERAL PURPOSE INPUT [6] | GENERAL PURPOSE OUTPUT [6] | GENERAL PURPOSE I/O [2] |
| 7 | GENERAL PURPOSE INPUT [7] | GENERAL PURPOSE OUTPUT [7] | GENERAL PURPOSE I/O [3] |