引脚复用
25 Jun 2024
Read time: 15 minute(s)
D12x 功能复用
| 引脚 | 功能 2 | 功能 3 | 功能 4 | 功能 5 | 功能 6 | 功能 8 |
|---|---|---|---|---|---|---|
| PA0 | GPADC0 | IR_TX | I2C0_SCL | UART0_TX | - | CPU_NMI |
| PA1 | GPADC1 | IR_RX | I2C0_SDA | UART0_RX | - | DE_TE |
| PA2 | GPADC2 | CAN1_TX | I2C1_SCL | UART1_TX | - | UART2_CTS |
| PA3 | GPADC3 | CAN1_RX | I2C1_SDA | UART1_RX | - | UART2_RTS |
| PA4 | GPADC4 | - | CAN0_TX | UART2_TX | - | - |
| PA5 | GPADC5 | - | CAN0_RX | UART2_RX | - | - |
| PA8 | RTP_XP | - | I2C0_SCL | - | - | - |
| PA9 | RTP_YP | - | I2C0_SDA | - | - | - |
| PA10 | RTP_XN | IR_RX | - | - | - | JTAG_MS |
| PA11 | RTP_YN | IR_TX | - | - | - | JTAG_CK |
| PB0 | SPI0_WP | SPI1_WP | - | UART0_TX | - | - |
| PB1 | SPI0_MISO | SPI1_MISO | - | UART2_TX | - | - |
| PB2 | SPI0_CS0 | SPI1_CS | - | UART2_RX | - | - |
| PB3 | SPI0_HOLD | SPI1_HOLD | - | UART0_RX | - | - |
| PB4 | SPI0_CLK | SPI1_CLK | - | UART2_RTS | - | - |
| PB5 | SPI0_MOSI | SPI1_MOSI | - | UART0_RTS | UART2_CTS | - |
| PB6 | SDC0_CMD | SPI1_CS | - | UART1_TX | - | - |
| PB7 | SDC0_CLK | SPI1_MISO | - | UART1_RX | - | - |
| PB8 | SDC0_D3 | SPI1_MOSI | - | UART1_RTS | UART3_CTS | - |
| PB9 | SDC0_D0 | SPI1_CLK | - | UART3_RTS | - | - |
| PB10 | SDC0_D1 | SPI1_HOLD | - | UART3_TX | - | - |
| PB11 | SDC0_D2 | SPI1_WP | - | UART3_RX | - | - |
| PC0 | SDC1_D1 | - | I2C0_SCL | UART3_RTS | - | JTAG_MS |
| PC1 | SDC1_D0 | - | - | - | - | - |
| PC2 | SDC1_CLK | - | - | - | - | UART0_TX |
| PC3 | SDC1_CMD | - | - | - | - | - |
| PC4 | SDC1_D3 | PWM0_A | I2C1_SCL | UART3_TX | - | UART0_RX |
| PC5 | SDC1_D2 | PWM0_B | I2C1_SDA | UART3_RX | - | JTAG_CK |
| PC6 | SDC1_DET | PWM1_A | I2C0_SDA | UART3_CTS | DE_TE | IR_RX |
| PC7 | - | PWM1_B | - | - | - | IR_TX |
| PD0 | LCD_D0 | CAN0_TX | I2C0_SCL | UART0_TX | - | - |
| PD1 | LCD_D1 | CAN0_RX | I2C0_SDA | UART0_RX | - | - |
| PD2 | LCD_D2 | CAN1_TX | I2C1_SCL | UART1_TX | - | - |
| PD3 | LCD_D3 | CAN1_RX | I2C1_SDA | UART1_RX | - | - |
| PD4 | LCD_D4 | - | I2C1_SCL | UART2_TX | - | - |
| PD5 | LCD_D5 | - | I2C1_SDA | UART2_RX | - | - |
| PD6 | LCD_D6 | - | PWM0_A | DSPK0 | - | - |
| PD7 | LCD_D7 | - | PWM0_B | DSPK1 | - | - |
| PD8 | LCD_D8 | - | PWM1_A | - | - | - |
| PD9 | LCD_D9 | - | - | - | - | - |
| PD10 | LCD_D10 | - | - | - | - | - |
| PD11 | LCD_D11 | - | - | - | - | - |
| PD12 | LCD_D12 | - | - | - | - | - |
| PD13 | LCD_D13 | - | - | - | - | - |
| PD14 | LCD_D14 | - | - | - | - | - |
| PD15 | LCD_D15 | - | - | - | - | - |
| PD16 | LCD_D16 | - | - | - | - | - |
| PD17 | LCD_D17 | - | - | - | - | - |
| PD18 | LCD_D18 | - | - | - | - | - |
| PD19 | LCD_D19 | - | - | - | - | - |
| PD20 | LCD_D20 | - | - | - | - | - |
| PD21 | LCD_D21 | - | - | - | - | - |
| PD22 | LCD_D22 | - | - | - | - | - |
| PD23 | LCD_D23 | - | - | - | - | - |
| PD24 | LCD_DCLK | - | - | - | - | - |
| PD25 | LCD_HS | - | - | - | PWM0_B | - |
| PD26 | LCD_VS | - | - | - | PWM1_A | - |
| PD27 | LCD_DE | - | - | - | PWM1_B | - |
| PE12 | - | PWM1_B | - | DSPK1 | - | - |
| PE13 | - | PWM0_A | - | DSPK0 | - | - |
D12x QFN68 封装引脚说明
| 引脚 | 定义 | 类型 | 功能 | 备注说明 |
|---|---|---|---|---|
| SYSTEM | ||||
| 52 | RESETN | INPUT | 系统复位 | 内置约 30 KΩ 上拉电阻和去抖滤波，不使用可直接悬空，若外挂电容建议不超过 4.7 uF。 |
| POWER | ||||
| 12, 29, 54 | VCC33_IO | POWER | 芯片 IO 电压 | 3.3 V 供电 |
| 55 | LDO25 | POWER | 内置 LDO 输出 | 内部模拟模块使用，外部接 1 uF 旁路电容。 |
| 28 | LDO18 | POWER | 内置 LDO 输出 | 供内部 PSRAM 使用，若使用需做好芯片散热，外部接 1 uF 旁路电容。 |
| 27, 53 | VDD11_SYS | POWER | 芯片 Core 电压 | 1.1 V 供电，若使用内置 LDO1x，必须做好芯片散热，53 引脚为 LDO1x 输出。 |
| 69 | GND | POWER | - | GND 铜皮全连接，需多加过孔散热。 |
D121 QFN68 封装功能复用表
| 引脚 | 功能 1 | 功能 2 | 功能 3 | 功能 4 | 功能 5 | 功能 6 | 功能 8 |
|---|---|---|---|---|---|---|---|
| GPIO A | |||||||
| 56 | PA0 | GPADC0 | IR_TX | I2C0_SCL | UART0_TX | - | CPU_NMI |
| 57 | PA1 | GPADC1 | IR_RX | I2C0_SDA | UART0_RX | - | DE_TE |
| 58 | PA2 | GPADC2 | - | I2C1_SCL | UART1_TX | - | UART2_CTS |
| 59 | PA3 | GPADC3 | - | I2C1_SDA | UART1_RX | - | UART2_RTS |
| 60 | PA4 | GPADC4 | - | - | UART2_TX | - | - |
| 61 | PA5 | GPADC5 | - | - | UART2_RX | - | - |
| 62 | PA8 | RTP_XP | - | I2C0_SCL | - | - | - |
| 63 | PA9 | RTP_YP | - | I2C0_SDA | - | - | - |
| 64 | PA10 | RTP_XN | IR_RX | - | - | - | JTAG_MS |
| 65 | PA11 | RTP_YN | IR_TX | - | - | - | JTAG_CK |
| GPIO B | |||||||
| 40 | PB0 | SPI0_WP | SPI1_WP | - | UART0_TX | - | - |
| 41 | PB1 | SPI0_MISO | SPI1_MISO | - | UART2_TX | - | - |
| 42 | PB2 | SPI0_CS0 | SPI1_CS | - | UART2_RX | - | - |
| 43 | PB3 | SPI0_HOLD | SPI1_HOLD | - | UART0_RX | - | - |
| 44 | PB4 | SPI0_CLK | SPI1_CLK | - | UART2_RTS | - | - |
| 45 | PB5 | SPI0_MOSI | SPI1_MOSI | - | UART0_RTS | UART2_CTS | - |
| 46 | PB6 | SDC0_CMD | SPI1_CS | - | UART1_TX | - | - |
| 47 | PB7 | SDC0_CLK | SPI1_MISO | - | UART1_RX | - | - |
| 48 | PB8 | SDC0_D3 | SPI1_MOSI | - | UART1_RTS | UART3_CTS | - |
| 49 | PB9 | SDC0_D0 | SPI1_CLK | - | UART3_RTS | - | - |
| 50 | PB10 | SDC0_D1 | SPI1_HOLD | - | UART3_TX | - | - |
| 51 | PB11 | SDC0_D2 | SPI1_WP | - | UART3_RX | - | - |
| GPIO C | |||||||
| 66 | PC0 | - | I2C0_SCL | UART3_RTS | - | - | JTAG_MS |
| 67 | PC1 | - | - | - | - | - | - |
| 68 | PC2 | - | - | - | - | - | UART0_TX |
| 1 | PC3 | - | - | - | - | - | - |
| 2 | PC4 | PWM0_A | I2C1_SCL | UART3_TX | - | - | UART0_RX |
| 3 | PC5 | PWM0_B | I2C1_SDA | UART3_RX | - | - | JTAG_CK |
| 4 | PC6 | PWM1_A | I2C0_SDA | UART3_CTS | DE_TE | - | IR_RX |
| 5 | PC7 | PWM1_B | - | - | - | - | IR_TX |
| GPIO D | |||||||
| 37 | PD0 | LCD_D0 | I2C0_SCL | UART0_TX | - | - | |
| 36 | PD1 | LCD_D1 | I2C0_SDA | UART0_RX | - | - | |
| 35 | PD2 | LCD_D2 | I2C1_SCL | UART1_TX | - | - | |
| 34 | PD3 | LCD_D3 | I2C1_SDA | UART1_RX | - | - | |
| 33 | PD4 | LCD_D4 | - | I2C1_SCL | UART2_TX | - | - |
| 32 | PD5 | LCD_D5 | - | I2C1_SDA | UART2_RX | - | - |
| 31 | PD6 | LCD_D6 | - | PWM0_A | DSPK0 | - | - |
| 30 | PD7 | LCD_D7 | - | PWM0_B | DSPK1 | - | - |
| 26 | PD8 | LCD_D8 | - | PWM1_A | - | - | - |
| 25 | PD9 | LCD_D9 | - | - | - | - | - |
| 24 | PD10 | LCD_D10 | - | - | - | - | - |
| 23 | PD11 | LCD_D11 | - | - | - | - | - |
| 22 | PD12 | LCD_D12 | - | - | - | - | - |
| 21 | PD13 | LCD_D13 | - | - | - | - | - |
| 20 | PD14 | LCD_D14 | - | - | - | - | - |
| 19 | PD15 | LCD_D15 | - | - | - | - | - |
| 18 | PD16 | LCD_D16 | - | - | - | - | - |
| 17 | PD17 | LCD_D17 | - | - | - | - | - |
| 16 | PD18 | LCD_D18 | - | - | - | - | - |
| 15 | PD19 | LCD_D19 | - | - | - | - | - |
| 14 | PD20 | LCD_D20 | - | - | - | - | - |
| 13 | PD21 | LCD_D21 | - | - | - | - | - |
| 11 | PD22 | LCD_D22 | - | - | - | - | - |
| 10 | PD23 | LCD_D23 | - | - | - | - | - |
| 9 | PD24 | LCD_DCLK | - | - | - | - | - |
| 8 | PD25 | LCD_HS | - | - | - | PWM0_B | - |
| 7 | PD26 | LCD_VS | - | - | - | PWM1_A | - |
| 6 | PD27 | LCD_DE | - | - | - | PWM1_B | - |
| GPIO E | |||||||
| 38 | PE12 | PWM1_B | - | DSPK1 | - | - | - |
| 39 | PE13 | PWM0_A | - | DSPK0 | - | - | - |
D122 QFN68 封装功能复用表
| 引脚 | 功能 1 | 功能 2 | 功能 3 | 功能 4 | 功能 5 | 功能 6 | 功能 8 |
|---|---|---|---|---|---|---|---|
| GPIO A | |||||||
| 56 | PA0 | GPADC0 | IR_TX | I2C0_SCL | UART0_TX | - | CPU_NMI |
| 57 | PA1 | GPADC1 | IR_RX | I2C0_SDA | UART0_RX | - | DE_TE |
| 58 | PA2 | GPADC2 | CAN1_TX | I2C1_SCL | UART1_TX | - | UART2_CTS |
| 59 | PA3 | GPADC3 | CAN1_RX | I2C1_SDA | UART1_RX | - | UART2_RTS |
| 60 | PA4 | GPADC4 | - | CAN0_TX | UART2_TX | - | - |
| 61 | PA5 | GPADC5 | - | CAN0_RX | UART2_RX | - | - |
| 62 | PA8 | RTP_XP | - | I2C0_SCL | - | - | - |
| 63 | PA9 | RTP_YP | - | I2C0_SDA | - | - | - |
| 64 | PA10 | RTP_XN | IR_RX | - | - | - | JTAG_MS |
| 65 | PA11 | RTP_YN | IR_TX | - | - | - | JTAG_CK |
| GPIO B | |||||||
| 40 | PB0 | SPI0_WP | SPI1_WP | - | UART0_TX | - | - |
| 41 | PB1 | SPI0_MISO | SPI1_MISO | - | UART2_TX | - | - |
| 42 | PB2 | SPI0_CS0 | SPI1_CS | - | UART2_RX | - | - |
| 43 | PB3 | SPI0_HOLD | SPI1_HOLD | - | UART0_RX | - | - |
| 44 | PB4 | SPI0_CLK | SPI1_CLK | - | UART2_RTS | - | - |
| 45 | PB5 | SPI0_MOSI | SPI1_MOSI | - | UART0_RTS | UART2_CTS | - |
| 46 | PB6 | SDC0_CMD | SPI1_CS | - | UART1_TX | - | - |
| 47 | PB7 | SDC0_CLK | SPI1_MISO | - | UART1_RX | - | - |
| 48 | PB8 | SDC0_D3 | SPI1_MOSI | - | UART1_RTS | UART3_CTS | - |
| 49 | PB9 | SDC0_D0 | SPI1_CLK | - | UART3_RTS | - | - |
| 50 | PB10 | SDC0_D1 | SPI1_HOLD | - | UART3_TX | - | - |
| 51 | PB11 | SDC0_D2 | SPI1_WP | - | UART3_RX | - | - |
| GPIO C | |||||||
| 66 | PC0 | - | I2C0_SCL | UART3_RTS | - | - | JTAG_MS |
| 67 | PC1 | - | - | - | - | - | - |
| 68 | PC2 | - | - | - | - | - | UART0_TX |
| 1 | PC3 | - | - | - | - | - | - |
| 2 | PC4 | PWM0_A | I2C1_SCL | UART3_TX | - | - | UART0_RX |
| 3 | PC5 | PWM0_B | I2C1_SDA | UART3_RX | - | - | JTAG_CK |
| 4 | PC6 | PWM1_A | I2C0_SDA | UART3_CTS | DE_TE | - | IR_RX |
| 5 | PC7 | PWM1_B | - | - | - | - | IR_TX |
| GPIO D | |||||||
| 37 | PD0 | LCD_D0 | CAN0_TX | I2C0_SCL | UART0_TX | - | - |
| 36 | PD1 | LCD_D1 | CAN0_RX | I2C0_SDA | UART0_RX | - | - |
| 35 | PD2 | LCD_D2 | CAN1_TX | I2C1_SCL | UART1_TX | - | - |
| 34 | PD3 | LCD_D3 | CAN1_RX | I2C1_SDA | UART1_RX | - | - |
| 33 | PD4 | LCD_D4 | - | I2C1_SCL | UART2_TX | - | - |
| 32 | PD5 | LCD_D5 | - | I2C1_SDA | UART2_RX | - | - |
| 31 | PD6 | LCD_D6 | - | PWM0_A | DSPK0 | - | - |
| 30 | PD7 | LCD_D7 | - | PWM0_B | DSPK1 | - | - |
| 26 | PD8 | LCD_D8 | - | PWM1_A | - | - | - |
| 25 | PD9 | LCD_D9 | - | - | - | - | - |
| 24 | PD10 | LCD_D10 | - | - | - | - | - |
| 23 | PD11 | LCD_D11 | - | - | - | - | - |
| 22 | PD12 | LCD_D12 | - | - | - | - | - |
| 21 | PD13 | LCD_D13 | - | - | - | - | - |
| 20 | PD14 | LCD_D14 | - | - | - | - | - |
| 19 | PD15 | LCD_D15 | - | - | - | - | - |
| 18 | PD16 | LCD_D16 | - | - | - | - | - |
| 17 | PD17 | LCD_D17 | - | - | - | - | - |
| 16 | PD18 | LCD_D18 | - | - | - | - | - |
| 15 | PD19 | LCD_D19 | - | - | - | - | - |
| 14 | PD20 | LCD_D20 | - | - | - | - | - |
| 13 | PD21 | LCD_D21 | - | - | - | - | - |
| 11 | PD22 | LCD_D22 | - | - | - | - | - |
| 10 | PD23 | LCD_D23 | - | - | - | - | - |
| 9 | PD24 | LCD_DCLK | - | - | - | - | - |
| 8 | PD25 | LCD_HS | - | - | - | PWM0_B | - |
| 7 | PD26 | LCD_VS | - | - | - | PWM1_A | - |
| 6 | PD27 | LCD_DE | - | - | - | PWM1_B | - |
| GPIO E | |||||||
| 38 | PE12 | PWM1_B | - | DSPK1 | - | - | - |
| 39 | PE13 | PWM0_A | - | DSPK0 | - | - | - |