Table of Contents

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Table of Contents

Prototype CRC65, A Frugal 6502-based SBC

Introduction

Features

Prototype CRC65, A Frugal 6502-based SBC

Introduction

CRC65 stands for CPLD_RAM_CFdisk_6502. It is a simple yet powerful 6502-based single board computer. Discussion about CRC65 development can be found here:

http://forum.6502.org/viewtopic.php?f=10&t=6440

This page describes the first prototype of CRC65. The production CRC65 homepage is here.

www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_protorc3_crc65_proto_dsc_62640109.jpg

Features

W65C02 operating at 14.7MHz

CY7C109 RAM provides 58K of RAM space

Altera EPM7064S CPLD with the following features

64-byte boot ROM

Double-buffered serial receiver at 115200 N81

Software bit-bang transmitter operating at 115200 N81

Compact Flash interface

I2C interface

RAM decode

Bus-connected IDE44 interface.

Prototyped with ProtoRC3

www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_protorc3_crc65_proto_crc65_prototype_mockup_annotated.jpg