Apple-2-HW/unified_retro_keyboard
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hardware/interface-ascii-atmega2560/README.md
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@ -18,7 +18,7 @@ output, supporting keyboards of up to 16 rows X 8 columns. This design uses the
## Differences from ATMega328P version
- Backward compatible with the ATMega328P version, with following enhancements:
1. The Output2 can be a regualar TTL, open-collector, or open-emitter. In the
328P version, changing between regulary TTL output and open-collector on
328P version, changing between regular TTL output and open-collector on
Output2 required changing an IC.
1. The serial port no longer shares lines with the parallel output port, so both
serial I/O and parallel output can be used at the same time without risk of