|   | 
          
            
  
  
  
   
 
 Next: References
 Up: mqp
 Previous: Bus Combiner Module
     Contents 
 
 
 
Table 11:
Axiom CMD-11A8 MC68HC11-based single board computer, memory map (1/2).
         
| Memory Range | 
Size | 
Function | 
 
| 0xFFFF-0xE000 | 
8K | 
Program EEPROM | 
 
| 0xDFFF-0xB800 | 
10.2K | 
ROM, RAM or EEPROM | 
 
| 0xB7FF-0xB600 | 
512 bytes | 
68HC11 Internal EEPROM | 
 
| 0xB5FF-0xB5F8 | 
8 bytes | 
R65C51 ACIA | 
 
|   | 
  | 
  | 
 
|   | 
  | 
0xB5FC-0xB5FF not used | 
 
|   | 
  | 
0xB5FB control register | 
 
|   | 
  | 
0xB5FA command register | 
 
|   | 
  | 
0xB5F9 status register | 
 
|   | 
  | 
0xB5F8 data register | 
 
| 0xB5F7-0xB5F4 | 
4 bytes | 
82C55 ports | 
 
|   | 
  | 
  | 
 
|   | 
  | 
0xB5F7 control register | 
 
|   | 
  | 
0xB5F6 port c | 
 
|   | 
  | 
0xB5F5 port b | 
 
|   | 
  | 
0xB5F4 port a | 
 
| 0xB5F3-0xB5F0 | 
4 bytes | 
LCD interface | 
 
|   | 
  | 
  | 
 
|   | 
  | 
0xB5F2-0xB5F3 not used | 
 
|   | 
  | 
0xB5F1 data register | 
 
|   | 
  | 
0xB5F0 command register | 
 
| 0xB5EF-0xB5E0 | 
16 bytes | 
CS6 (onboard addx decoding) | 
 
| 0xB5DF-0xB5D0 | 
16 bytes | 
CS5 | 
 
| 0xB5CF-0xB5C0 | 
16 bytes | 
CS4 | 
 
| 0xB5BF-0xB5B0 | 
16 bytes | 
CS3 | 
 
| 0xB5AF-0xB5A0 | 
16 bytes | 
CS2 | 
 
| 0xB59F-0xB590 | 
16 bytes | 
CS1 | 
 
| 0xB58F-0xB580 | 
16 bytes | 
CS0 (mixer Pbus controller) | 
 
|   | 
  | 
  | 
 
|   | 
  | 
0xB584-0xB58F not used | 
 
|   | 
  | 
0xB583 control port | 
 
|   | 
  | 
0xB582 port C | 
 
|   | 
  | 
0xB581 port B | 
 
|   | 
  | 
0xB580 port A | 
 
| 0xB57F-0x8000 | 
13.7K | 
ROM, RAM or EEPROM | 
 
| 0x7FFF-0x1040 | 
28.6K | 
RAM | 
 
 
 |  
 
 
 
 
Table 12:
Axiom CMD-11A8 MC68HC11-based single board computer, memory map (2/2).
         
| 0x103F-0x1000 | 
64 bytes | 
68HC11 internal registers | 
 
|   | 
  | 
  | 
 
|   | 
  | 
0x103F CONFIG | 
 
|   | 
  | 
0x103D INIT | 
 
|   | 
  | 
0x103C HPRIO | 
 
|   | 
  | 
0x1039 OPTION | 
 
|   | 
  | 
0x102F SCDR | 
 
|   | 
  | 
0x102E SCSR2 | 
 
|   | 
  | 
0x102D SCCR2 | 
 
|   | 
  | 
0x102C SCCR1 | 
 
|   | 
  | 
0x102B BAUD | 
 
|   | 
  | 
0x1029 SPSR | 
 
|   | 
  | 
0x1028 SPCR | 
 
|   | 
  | 
0x1026 PACTL | 
 
|   | 
  | 
0x1025 TFLG2 | 
 
|   | 
  | 
0x1024 TMSK2 | 
 
|   | 
  | 
0x1020 TCTL1 | 
 
|   | 
  | 
0x100F TCNT | 
 
|   | 
  | 
0x100E TCNT | 
 
|   | 
  | 
0x100D OC1D | 
 
|   | 
  | 
0x100C OC1M | 
 
|   | 
  | 
0x100B CFORC | 
 
|   | 
  | 
0x100A PORTE | 
 
|   | 
  | 
0x1009 DDRD | 
 
|   | 
  | 
0x1008 PORTD | 
 
|   | 
  | 
0x1007 DDRC | 
 
|   | 
  | 
0x1005 PORTCL | 
 
|   | 
  | 
0x1004 PORTB | 
 
|   | 
  | 
0x1003 PORTC | 
 
|   | 
  | 
0x1002 PIOC | 
 
|   | 
  | 
0x1000 PORTA | 
 
| 0x0FFF-0x00FF | 
3.8K | 
RAM | 
 
| 0x00FE-0x0000 | 
256 bytes | 
68HC11 internal RAM | 
 
 
 |  
 
 
 
 
Table 13:
Axiom CMM-11A8 MC68HC11-based single board computer, memory map (1/2).
         
| Memory Range | 
Size | 
Function | 
 
| 0xFFFF-0xE000 | 
8K | 
Program EEPROM | 
 
| 0xDFFF-0xB800 | 
10.2K | 
external memory select | 
 
| 0xB7FF-0xB600 | 
512 bytes | 
68HC11 Internal EEPROM | 
 
| 0xB5FF-0xB5F4 | 
12 bytes | 
CS7 | 
 
| 0xB5F3-0xB5F0 | 
4 bytes | 
LCD interface | 
 
|   | 
  | 
  | 
 
|   | 
  | 
0xB5F2-0xB5F3 not used | 
 
|   | 
  | 
0xB5F1 data register | 
 
|   | 
  | 
0xB5F0 command register | 
 
| 0xB5EF-0xB5E0 | 
16 bytes | 
CS6 (onboard addx decoding) | 
 
| 0xB5DF-0xB5D0 | 
16 bytes | 
CS5 | 
 
| 0xB5CF-0xB5C0 | 
16 bytes | 
CS4 | 
 
| 0xB5BF-0xB5B0 | 
16 bytes | 
CS3 | 
 
| 0xB5AF-0xB5A0 | 
16 bytes | 
CS2 | 
 
| 0xB59F-0xB590 | 
16 bytes | 
CS1 (graphics LCD) | 
 
|   | 
  | 
  | 
 
|   | 
  | 
0xB592-0xB59F not used | 
 
|   | 
  | 
0xB591 command register | 
 
|   | 
  | 
0xB590 data register | 
 
| 0xB58F-0xB580 | 
16 bytes | 
CS0 (board Pbus controller) | 
 
|   | 
  | 
  | 
 
|   | 
  | 
0xB584-0xB58F not used | 
 
|   | 
  | 
0xB583 control port | 
 
|   | 
  | 
0xB582 port C | 
 
|   | 
  | 
0xB581 port B | 
 
|   | 
  | 
0xB580 port A | 
 
| 0xB57F-0x8000 | 
13.7K | 
external memory select | 
 
| 0x7FFF-0x6000 | 
8K | 
RAM (mirror) | 
 
| 0x2000-0x3FFF | 
8K | 
RAM (mirror) | 
 
 
 |  
 
 
 
 
Table 14:
Axiom CMM-11A8 MC68HC11-based single board computer, memory map (2/2).
         
| 0x103F-0x1000 | 
64 bytes | 
68HC11 internal registers | 
 
|   | 
  | 
  | 
 
|   | 
  | 
0x103F CONFIG | 
 
|   | 
  | 
0x103D INIT | 
 
|   | 
  | 
0x103C HPRIO | 
 
|   | 
  | 
0x1039 OPTION | 
 
|   | 
  | 
0x102F SCDR | 
 
|   | 
  | 
0x102E SCSR2 | 
 
|   | 
  | 
0x102D SCCR2 | 
 
|   | 
  | 
0x102C SCCR1 | 
 
|   | 
  | 
0x102B BAUD | 
 
|   | 
  | 
0x1029 SPSR | 
 
|   | 
  | 
0x1028 SPCR | 
 
|   | 
  | 
0x1026 PACTL | 
 
|   | 
  | 
0x1025 TFLG2 | 
 
|   | 
  | 
0x1024 TMSK2 | 
 
|   | 
  | 
0x1020 TCTL1 | 
 
|   | 
  | 
0x100F TCNT | 
 
|   | 
  | 
0x100E TCNT | 
 
|   | 
  | 
0x100D OC1D | 
 
|   | 
  | 
0x100C OC1M | 
 
|   | 
  | 
0x100B CFORC | 
 
|   | 
  | 
0x100A PORTE | 
 
|   | 
  | 
0x1009 DDRD | 
 
|   | 
  | 
0x1008 PORTD | 
 
|   | 
  | 
0x1007 DDRC | 
 
|   | 
  | 
0x1005 PORTCL | 
 
|   | 
  | 
0x1004 PORTB | 
 
|   | 
  | 
0x1003 PORTC | 
 
|   | 
  | 
0x1002 PIOC | 
 
|   | 
  | 
0x1000 PORTA | 
 
| 0x0FFF-0x00FF | 
3.8K | 
Not Used | 
 
| 0x00FE-0x0000 | 
256 bytes | 
68HC11 internal RAM | 
 
 
 |  
 
 
 
 
  
  
  
   
 
 Next: References
 Up: mqp
 Previous: Bus Combiner Module
     Contents 
Steve Richardson
2000-07-06
 | 
Table of Contents
 
 
[Whole document in PDF 1.9MB]
 
 
[more photos and information]
 
 |