ENC28J60_3V3 L1 10UH PA6 PA7 PA5 PA4 PG15 PG8 6 7 8 9 10 4 16 17 12 13 26 27 23 2 1 SO SI SCK CS# RESET INT# TPOUT- TPOUT+ TPIN- TPIN+ LEDB TD- TD+ 9 12 11 10 6 RD- 3 RD+ ENC28J60_3V3 R7 R8 1K 1K 12 9 YELLOW_LED_A GREEEN_LED_A 28 15 19 20 25 VDD VDDTX VDDRX VDDPLL VDDOSC LEDA OSC1 7 6 5 4 3 1 C 29 22P 10 11 GREEEN_LED_K YELLOW_LED_K 11 18 21 22 2 7 4 5 8 VSSRX VSSTX VSSPLL VSSOSC NC 4 5 Y4 25MHz GND 8 2 1 R6 2. 4K 14 1 2 24 3 5 C 30 22P CN7 RBIAS VCAP VSS OSC2 CLKOUT NC* HR911105A U8 ENC28J60 ENC28J60_3V3 J13 1 3. 0MM 3. 0MM J14 1 3. 0MM 3. 0MM SPI_6X2P U2 1 U15 1 SPI_6X2P PA4 PA6 2 4 6 8 PA5 PA4 PA6 PG8 2 4 6 8 PA5 PA7 CLK MOSI IO2 IO4 GND 3V3 CS CS CLK 3 PA7 3 5 MISO MISO IO1 IO3 IO5 5V MOSI IO2 IO4 GND 3V3 PG8 5 PG15 PC4 PG15 PC4 IO1 IO3 IO5 5V PC13/ TAMPER PB0 7 PC13/ TAMPER PB0 7 10 12 9 9 10 12 ENC28J60_3V3 ENC28J60_3V3 11 11 5V 5V