ryu10 / sbc6802

Single Board Computer based on Motorola 6802

SBC6802 plus Bus

Ja | En

Rev. 2

An MC6802-based single board computer. The board design is derived from SBC6800 and SBC6809.

Features

• MC6802 1MHz
• RAM 32KB (0x0000 - 0x7fff)
• ROM 16KB (0xc000 - 0xffff x two banks, selectable using JP1)
• ACIA (0x8018/0x8019)
• SBC-Bus 2.0 Connector

In This Repository

The following files are included, along with the KiCAD project:

• Schematic
• Gerber
• BOM

Programming PIC12F1822

PIC12F1822（U7）can be programmed with osc1536.hex found in SBC6800 datapack to generate the clock for 6850 ACIA. The serial port will operate at 9600 bps.

SBC-Bus

The bus connector J1 supports SBC-Bus 2.0. Pin 38 is routed to 6802 VMA.

If the board is not connected to the SBC-Bus, connect the 5V and GND pins to a +5V regulated power supply.

Software

Most of the 6800 software found in SBC6800 datapack are compatible with SBC6802.

References

• SBC6800 / Technical Data PDF
• SBC6809
• SBC-Bus 2.0
• as0 Motorola 6800 Assembler
• M6800 Assembly VSCode Extension

License

CC-BY-SA 3.0 2019 ryu10/RyuStudio.

Derived from the original works of SBC6800 and SBC6809 (c) 2017-2018 Tetsuya Suzuki.