User Manual

MeiG_SLM550_Hardware Design Manual
MeiG Smart Technology Co., Ltd 88/89
GPIO_3 153 SPI_CS_N UART_RXD
GPIO_4 36 SPI_MISO UART_CTS I2C_SDA
GPIO_5 37 SPI_MOSI UART_RTS I2C_SCL
GPIO_69 34 SPI_SCLK UART_TXD
GPIO_70 35 SPI_CS_N UART_RXD
GPIO_6
2)
48 SPI_MISO UART_CTS I2C_SDA
GPIO_7
2)
47 SPI_MOSI UART_RTS I2C_SCL
GPIO_71
2)
31 SPI_SCLK UART_TXD
GPIO_80
2)
30 SPI_CS_N UART_RXD
GPIO_96
3)
95 SPI_MISO UART_CTS I2C_SDA
GPIO_97
3)
96 SPI_MOSI UART_RTS I2C_SCL
GPIO_12
4)
94 SPI_SCLK UART_TXD
GPIO_13
4)
93 SPI_CS_N UART_RXD
GPIO_14 118 SPI_MISO UART_CTS I2C_SDA
GPIO_15 119 SPI_MOSI UART_RTS I2C_SCL
GPIO_16 116 SPI_SCLK UART_TXD
GPIO_17 117 SPI_CS_N UART_RXD
Note:
1. GPIO_0/GPIO1 also used for I3C_SDA/SCL.
2. GPIO6, GPIO7 default used for TP_I2C, GPIO71 default used for TP_RESET_N and GPIO80 default
used for TP_INT_N.
3. GPIO12, GPIO13 default used for Debug_UART, GPIO96 default used for KEY_VOL_UP and
GPIO97 default used for KEY_VOL_DOWN.
4. Blue is the default function
5. simultaneous UART, and I2C functionality are not supported in SLM550.