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
-
MC6809 Datasheet