"Engineering Note 100: MCM6830L7 MIKBUG/MINIBUG ROM"
By Motorola, Inc.
197x (1976?)


SYSTEMS OVERVIEW

The MIKBUG/MINIBUG ROM provides the user with three separate firmware 
programs to interface with a serial asynchronous (start-stop) data 
communications device. They are:

     1) MIKBUG Rev. 9
     2) MINIBUG Rev. 4
     3) Test Pattern

The map of the programs is shown in Figure 1-1.

        +---------+ ---
  $E000 |         |  ^
        | MIKBUG  |  |
        | Rev. 9  | 512 Bytes
        |         |  |
        |         |  V
        +---------+ ---
  $FE00 |         |  ^
        | MINIBUG |  |
        | Rev. 4  | 256 Bytes
        |         |  |
        |         |  V
        +---------+ ---
  $EE00 |         |  ^
        |  Test   |  |
        | Pattern | 256 Bytes
        |         |  |
        |         |  V
        +---------+ ---

  (Fig. 1-1. MIKBUG/MINIBUG ROM Memory Map)


FEATURES

     The more important features of these programs are:

MIKBUG Rev. 9

     A. Memory Loader
     B. Print Registers of Target Program
     C. Print/Punch Dump
     D. Memory Change
     E. Go to Target Program
     F. Operates with PIA for the Parallel-to-Serial Interface
     G. Restart/NMI/SWI Interrupt Vectors

MINIBUG Rev. 4

     A. Memory Loader
     B. Memory Change
     C. Print Registers of Target Program
     D. Go to Target Program
     E. Assumes a UART for the Parallel-to-Serial Interface