![[Really bad picture of Dennis Severin's 68HC11 Microcomputer]](./img/68hc11.jpg)
| MANUFACTURER | Dennis Severin |
| MODEL | 68HC11 Microcomputer |
| YEAR OF INTRODUCTION | 1997 |
| MAIN PROCESSOR | 68HC11E2 |
| BITS | 8 |
| CLOCK SPEED | 2 MHz |
| FLOATING POINT UNIT | none |
| MEMORY MANAGEMENT UNIT | none |
| CO-PROCESSOR | none |
| RAM | 256 bytes |
| ROM | 2k |
| OPERATING SYSTEM | 68HC11 Monitor |
| HONOURABLE MENTION | Dennis Severin |
In my second year of TAFE, quite a while after I completed the Microprocessor Fundamentals module, they decided to upgrade from the MEK6802D5 systems to these units. At the time, and still now I'd say, 68HC11 development boards from Motorola cost a fair bit and were out of reach of the average students budget. Dennis, our head of department, designed this board as a solution and it was sold to students as a kit for a measly AU$60.
Even though I had previously completed the aforementioned module, I decided to repeat it just as an excuse to buy the board. Basically, the 68HC11 is a 6800 with an extra index register and the ability to combine the two 8-bit accumulators to form a single 16-bit one. It also has onboard ROM and RAM as well as inbuilt peripherals like timers, A/D conversion, RS-232, parallel ports, etc. Now you can understand why I wanted one, eh?