8279: Difference between revisions
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m Created page with ''''Programmable Keyboard / Display Interface''' =Pinout= <pre> DIP40 +---\/---+ RL2 | 1 40| Vcc RL3 | 2 39| RL1 CLK | 3 38| RL0 IRQ | 4 …' |
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[[Category:Other Chips]] | [[Category:Other Chips]] | ||
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Latest revision as of 15:40, 9 November 2017
Programmable Keyboard / Display Interface
Pinout
DIP40
+---\/---+
RL2 | 1 40| Vcc
RL3 | 2 39| RL1
CLK | 3 38| RL0
IRQ | 4 37| CNTL/STB
RL4 | 5 36| SHIFT
RL5 | 6 35| SL3
RL6 | 7 34| SL2
RL7 | 8 33| SL1
RESET | 9 32| SL0
*RD |10 31| OUT B0
*WR |11 30| OUT B1
DB0 |12 29| OUT B2
DB1 |13 28| OUT B3
DB2 |14 27| OUT A0
DB3 |15 26| OUT A1
DB4 |16 25| OUT A2
DB5 |17 24| OUT A3
DB6 |18 23| *BD
DB7 |19 22| *CS
Vss(GND) |20 21| A0
+--------+
Frequency
DIP40
Set reader to FREQ, put black probe to GND, red probe to 3 to measure CPU clock
External links
Files
-
TMP82C79 Datasheet
