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→I/O Connections: Add AVR I/O connections.
The pinout of this module matches the "NOTDuino" kit along with the "CW301 Multi-Target Board" routing. The following is the connection between GPIO1-4 and the I/O lines on the AVR:
{| class="wikitable"!CW308 Pin!ATMega328P Pin!Notes|-|GPIO1|PD0 (RXD)|Serial INPUT to AVR.|-|GPIO2|PD1 (TXD)|Serial OUTPUT from AVR.|-|GPIO3|N/C||-|GPIO4|PC0|Trigger pin (mapped to ADC-port such that I/O driver power comes from AVCC).|-|CLKIN|XTAL1||-|CLKFB|PB0|Can set this pin as CLKO with fuse. Useful for synchronizing to internal RC oscillator.|-|nRST|nRST (PC6)|Used by in-system-programming (ISP) interface.|-|MOSI|PB3 (MOSI)|Used by in-system-programming (ISP) interface.|-|MISO|PB4 (MISO)|Used by in-system-programming (ISP) interface.|-|SCK|PB5 (SCK)|Used by in-system-programming (ISP) interface.|}
== Programming Header ==