| **LED** |
| Power LED | +3V3 |
| LED1
| PG6 |
| LED2 | PH14 |
| LED3 | PA10 |
| LED4 | PH12 |
| LED5 | PI9 |
| **ST3232BTR\_1 UART RS232 Transceiver (P10 & P11)** |
| T1\_IN | USART1\_TXD |
| T2\_IN | USART6\_TXD |
| T1\_OUT | TXD1 |
| T2\_OUT | TXD2 |
| R1\_IN | RXD1 |
| R2\_IN | RXD2 |
| R1\_OUT | USART1\_RXD |
| R2\_OUT | USART6\_RXD |
| V+ | C7 (100nF)
|
| V- | C8 (100nF) |
| C1+ | C5 (100nF) |
| C1- | C5 (100nF) |
| C2+ | C6 (100nF) |
| C2- | C6 (100nF) |
| ESDA25-4BP6 ESD protection |
| I/O\_1 | RXD2 |
| I/O\_2
| TXD1 |
| I/O\_3 | RXD1 |
| I/O\_4 | TXD2 |
| GND | FGC |
| **ST3232BTR\_2 UART RS232 Transceiver (P10)** |
| T1\_IN | USART3\_TXD |
| T2\_IN | UART7\_TXD |
| T1\_OUT | B\_4 |
| T2\_OUT | B\_3 |
| R1\_IN | A\_4 |
| R2\_IN | A\_3 |
| R1\_OUT | USART3\_RXD |
| R2\_OUT | UART7\_RXD |
| V+ | C64 (100nF)
|
| V- | C65 (100nF) |
| C1+ | C57 (100nF) |
| C1- | C57 (100nF) |
| C2+ | C50 (100nF) |
| C2- | C50 (100nF) |
| ESDA25-4BP6 ESD protection |
| I/O\_1 | - |
| I/O\_2
| - |
| I/O\_3 | B\_4 |
| I/O\_4 | A\_4 |
| GND | FGC |
| **MAX481CSA\_1 UART RS485 Transceiver (P12)** |
| DI | USART1\_TXD |
| DE | RS485\_DRIVER\_ENABLE1 |
| RE/ | RS485\_RECEIVER\_ENABLE1 |
| RO | USART1\_RXD |
| A | TXD1 |
| B | RXD1 |
| **MAX481CSA\_2 UART RS485 Transceiver (P12)** |
| DI | USART6\_TXD |
| DE | RS485\_DRIVER\_ENABLE2 |
| RE/ | RS485\_RECEIVER\_ENABLE2 |
| RO | USART6\_RXD |
| A | TXD2 |
| B | RXD2 |
| **MAX481CSA\_3 UART RS485 Transceiver (P11 & P12)** |
| DI | USART3\_TXD |
| DE | RS485\_DRIVER\_ENABLE3 |
| RE/ | RS485\_RECEIVER\_ENABLE3 |
| RO | USART3\_RXD |
| A | A\_3 |
| B | B\_3 |
| **MAX481CSA\_4 UART RS485 Transceiver (P11 & P12)** |
| DI | UART7\_TXD |
| DE | RS485\_DRIVER\_ENABLE4 |
| RE/ | RS485\_RECEIVER\_ENABLE4 |
| RO | UART7\_RXD |
| A | A\_4 |
| B | B\_4 |
| **USBLC6-2P6 ESD protection** |
| VCC | VBUS\_ADC, MICROUSB\_B\_U254-051T-4BH83-F1S (PIN1) |
| GND | GND |
| IO1\_A | MICROUSB\_B\_U254-051T-4BH83-F1S (PIN2) |
| IO2\_A | MICROUSB\_B\_U254-051T-4BH83-F1S (PIN3) |
| IO1\_B | BOOTLOADER\_TX |
| IO2\_B | BOOTLOADER\_RX |
| **Serial EEPROM M24C08-RMC6TG** |
| E0 | GND
|
| E1 | GND
|
| E2 | +3V3
|
| VSS | GND
|
| VCC | +3V3
|
| WC/ | GND
|
| SCL | I2C1\_SCL
|
| SDA | I2C1\_SDA
|
| **Serial Flash A25LQ64M** |
| CS# | SPI2\_SS |
| SO | SPI2\_MISO |
| WP# | SPI2\_W |
| VSS | GND |
| VCC | +3V3 |
| HOLD# | SPI2\_IO3 |
| SCLK | SPI2\_SCK |
| SI | SPI2\_MOSI |
| **IP101GRI ETHERNET PHY transceivers** |
| MDC | ETH\_MDC
|
| MDIO | ETH\_MDIO
|
| MDI\_TP | TXD+
|
| MDI\_TN | TXD-
|
| MDI\_RP | RXD+
|
| MDI\_RN | RXD-
|
| X2 | - |
| X1 | ETH\_MCO |
| RESET\_N | ETH\_RESET\_N |
| ISET | ETH\_ISET |
| LED0/PHY\_AD0 | ETH\_LED0/PHY\_AD0 |
| LED3/PHY\_AD3 | ETH\_LED3/PHY\_AD3 |
| TEST\_ON | - |
| REGOUT | C23 (100 nF), C29 (10 uF) |
| VDDIO | +3V3 |
| AVDD33 | +3V3 |
| GND | GND |
| TXEN | ETH\_TX\_EN |
| TXER/FXSD | - |
| TXCLK/50M\_CLKI | ETH\_RMII\_REF\_CLK |
| TXD0 | ETH\_TXD0 |
| TXD1 | ETH\_TXD1 |
| TXD2 | - |
| TXD3 | - |
| RXDV/CRS\_DV/FX\_HEN | ETH\_RXDV/CRS\_DV |
| RXCLK/50M\_CLKO | - |
| RXD0 | ETH\_RXD0 |
| RXD1 | ETH\_RXD1 |
| RXD2 | - |
| RXD3 | - |
| RXER/INTR\_32 | - |
| COL/RMII | ETH\_COL/RMII |
| CRS/LEDMOD | - |
| **STM32 F439NIH6** |
| PA0 | - |
| PA1 | ETH\_RMII\_REF\_CLK |
| PA2 | ETH\_MDIO |
| PA3 | - |
| PA4 | - |
| PA5 | - |
| PA6 | SWITCH |
| PA7 | ETH\_RXDV/CRS\_DV |
| PA8 | ETH\_MCO
|
| PA9 | BUZZER\_PWM |
| PA10 | LED\_A3 |
| PA11 | USB\_DM BOOTLOADER\_RX |
| PA12 | USB\_DP BOOTLOADER\_TX |
| PA13 | JTMS |
| PA14 | JTCK |
| PA15 | CONF2 |
| PB0 | ETH\_LED0/PHY\_AD0 |
| PB1 | ETH\_LED3/PHY\_AD3 |
| PB2 | BOOT1 |
| PB3 | SW0 |
| PB4 | USART1\_RXD |
| PB5 | USART1\_TXD |
| PB6 | USART1\_TXD |
| PB7 | USART1\_RXD |
| PB8 | I2C1\_SCL |
| PB9 | I2C1\_SDA |
| PB10 | USART3\_TXD |
| PB11 | USART3\_RXD |
| PB12 | USART3\_RXD |
| PB13 | USART3\_TXD |
| PB14 | - |
| PB15 | - |
| PC0 | SD\_NWE |
| PC1 | ETH\_MDC |
| PC2 | - |
| PC3 | - |
| PC4 | ETH\_RXD0
|
| PC5 | ETH\_RXD1 |
| PC6 | USART6\_TXD |
| PC7 | USART6\_TXD |
| PC8 | CONF4 |
| PC9 | CONF1 |
| PC10 | BOOTLOADER\_TX |
| PC11 | BOOTLOADER\_RX |
| PC12 | CONF3 |
| PC13 | RTC\_AF1 |
| PC14 | OSC32\_IN |
| PC15 | OSC32\_OUT |
| PD0 | D2 |
| PD1 | D3 |
| PD2 | CONF6 |
| PD3 | - |
| PD4 | NOR\_NOE |
| PD5 | NOR\_NWE |
| PD6 | NOR\_NWAIT |
| PD7 | NOR\_NE1 |
| PD8 | D13 |
| PD9 | D14 |
| PD10 | D15 |
| PD11 | A16 |
| PD12 | A17 |
| PD13 | A18 |
| PD14 | D0 |
| PD15 | D1 |
| PE0 | SD\_LDOM |
| PE1 | SD\_UDOM |
| PE2 | - |
| PE3 | A19 |
| PE4 | A20 |
| PE5 | A21 |
| PE6 | - |
| PE7 | D4 |
| PE8 | D5 |
| PE9 | D6 |
| PE10 | D7 |
| PE11 | D8 |
| PE12 | D9 |
| PE13 | D10 |
| PE14 | D11 |
| PE15 | D12 |
| PF0 | A0 |
| PF1 | A1 |
| PF2 | A2 |
| PF3 | A3 |
| PF4 | A4 |
| PF5 | A5 |
| PF6 | UART7\_RXD |
| PF7 | UART7\_TXD |
| PF8 | VBUS\_ADC |
| PF9 | L2 |
| PF10 | L1 |
| PF11 | SD\_NDRAS |
| PF12 | A6 |
| PF13 | A7 |
| PF14 | A8 |
| PF15 | A9 |
| PG0 | A10 |
| PG1 | A11 |
| PG2 | A12 |
| PG3 | A13 |
| PG4 | A14 |
| PG5 | A15 |
| PG6 | LED\_A1 |
| PG7 | DIP\_SWITCH |
| PG8 | SD\_CLK |
| PG9 | USART6\_RXD |
| PG10 | USART6\_RXD |
| PG11 | ETH\_TXEN |
| PG12 | - |
| PG13 | ETH\_TXD0 |
| PG14 | ETH\_TXD1 |
| PG15 | SD\_NCAS |
| PH0 | OSC+IN |
| PH1 | OSC\_OUT |
| PH2 | SD\_CKE0 |
| PH3 | SD\_NE0 |
| PH4 | I2C2\_SCL |
| PH5 | I2C2\_SDA |
| PH6 | - |
| PH7 | - |
| PH8 | RS485\_DRIVER\_ENABLE1 |
| PH9 | RS485\_RECEIVER\_ENABLE1 |
| PH10 | RS485\_DRIVER\_ENABLE2 |
| PH11 | RS485\_RECEIVER\_ENABLE2
|
| PH12 | LED\_A4 |
| PH13 | - |
| PH14 | LED\_A2 |
| PH15 | CONF5 |
| PI0 | WP#//ACC |
| PI1 | SPI2\_SCK |
| PI2 | SPI2\_MISO |
| PI3 | SPI2\_MOSI |
| PI4 | SPI2\_W |
| PI5 | SPI2\_IO3 |
| PI6 | ETH\_RST |
| PI7 | RS485\_DRIVER\_ENABLE3 |
| PI8 | RS485\_RECEIVER\_ENABLE3 |
| PI9 | LED\_5 |
| PI10 | RS485\_TERMINATION\_ENABLE4 |
| PI11 | RS485\_TERMINATION\_ENABLE3 |
| PI12 | SPI2\_SS |
| PI13 | - |
| PI14 | RS485\_RECEIVER\_ENABLE4 |
| PI15 | RS485\_DRIVER\_ENABLE4 |