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- COL
- ---
- Anode side, senses keys with internal pull-up.
-
- Left to right:
-
- PTD6
- PTD5
- PTD4
- PTD3
-
- PTA19
- PTA18
- PTA4 NMI
- PTA2
- PTA1
-
- PTE25
- PTE24
- PTE30
- PTE29
- PTE21
-
- ROW
- ----
- Cathod side, given strobe with output low.
-
- Top to bottom:
-
- PTB3
- PTB16
- PTB17
- PTC0
- PTC1
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