6809: Difference between revisions
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Line 5: | Line 5: | ||
DIP40 | DIP40 | ||
+---\/---+ | +---\/---+ | ||
GND |1 40| | GND |1 40| *HALT | ||
*NMI |2 39| EXTAL | |||
*IRQ |3 38| XTAL | |||
*FIRQ |4 37| *RST | |||
BS |5 36| MRDY | BS |5 36| MRDY | ||
BA |6 35| Q | BA |6 35| Q | ||
VCC |7 34| E | VCC |7 34| E | ||
A0 |8 33| | A0 |8 33| *BREQ | ||
A1 |9 32| R/ | A1 |9 32| R/*W | ||
A2 |10 31| D0 | A2 |10 31| D0 | ||
A3 |11 30| D1 | A3 |11 30| D1 | ||
Line 29: | Line 29: | ||
=Frequency= | =Frequency= | ||
Set reader to FREQ, put black probe to GND, red probe to 38 / 39 to measure CPU clock | |||
=External links= | =External links= |
Revision as of 13:22, 29 September 2009
8-bit Microprocessor
Pinout
DIP40 +---\/---+ GND |1 40| *HALT *NMI |2 39| EXTAL *IRQ |3 38| XTAL *FIRQ |4 37| *RST BS |5 36| MRDY BA |6 35| Q VCC |7 34| E A0 |8 33| *BREQ A1 |9 32| R/*W A2 |10 31| D0 A3 |11 30| D1 A4 |12 29| D2 A5 |13 28| D3 A6 |14 27| D4 A7 |15 26| D5 A8 |16 25| D6 A9 |17 24| D7 A10 |18 23| A15 A11 |19 22| A14 A12 |20 21| A13 +--------+
Frequency
Set reader to FREQ, put black probe to GND, red probe to 38 / 39 to measure CPU clock
External links
6809 page on Wikipedia
6809 page on CPU-World
Files
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MC6809 Datasheet