6532
+---------------------+
GND -+ 1 40 +- A6
| |
A5 -+ 2 39 +- PHI2
| |
A4 -+ 3 38 +- CS1
| | ___
A3 -+ 4 37 +- CS2
| |
A2 -+ 5 36 +- RS
| | _
A1 -+ 6 35 +- R/W
| | ___
A0 -+ 7 34 +- RES
| |
PA0 -+ 8 33 +- D0
| |
PA1 -+ 9 32 +- D1
| |
PA2 -+ 10 31 +- D2
| 6532 |
PA3 -+ 11 30 +- D3
| |
PA4 -+ 12 29 +- D4
| |
PA5 -+ 13 28 +- D5
| |
PA6 -+ 14 27 +- D6
| |
PA7 -+ 15 26 +- D7
| |
PB7 -+ 16 25 +- P0
| |
PB6 -+ 17 24 +- PB1
| |
PB5 -+ 18 23 +- PB2
| |
PB4 -+ 19 22 +- PB3
| |
+5V -+ 20 21 +- PB4
+---------------------+
PA0..PA7 = Port A, 8 programmable I/O lines
PB0..PB7 = Port B, 8 programmable I/O lines
D0..D7 = data bus
A0..A9 = address bus
CLK2 = Clock of the processor, also known as PHI2
RS = Line used to choose between RAM AND I/O
R/W = Read/Write line
RES = Reset line
CS1, CS2 = CS lines
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