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Chapter 2. Getting Started 2.4.3 LED Description 2.4.3.1. GPIO LED Eddy-CPU v2.1 supports Max 56 GPIO ports. DK board has 20 GPIO LEDs of all GPIO to test. This GPIO LEDs are controlled by UART select switches.(refer to 2.4.2.4 UART Select ) 37 PIN name Function Discription I/O PC10 CTS3 UART #3 Clear to Send I PC8 RTS3 UART #3 Request to Send O PB11 RXD3 UART #3 Receive Data I PB10 TXD3 UART #3 Transmit Data O PA5 CTS2 UART #2 Cleat to Send I PA4 RTS2 UART #2 Request to Send O PB9 RXD2 UART #2 Receive Data I PB8 TXD2 UART #2 Transmit Data O PB29 CTS1 UART #1 Cleat to Send I
