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4.管脚默认状态

Pin Name Default drive level for I/O before the Reset Is Deasserted Default Function When the Core Power Is not Powered on
and the I/O Power Is Powered on
After the Core Power and I/O Power Are Powered on
and Before the Reset Is Deasserted
Before U-Boot Running and After Reset Deassertion Chip Internal
Pull-up/Pull-down Resistor
Constraints
For details about the I/O levels and drive strength,
see the DC/AC electrical specifications in chapter 2 "Hardware" of the chip data sheet.
A higher level indicates greater drive strength.
The following uses the four I/O levels as an example: level 4 > level 3 > level 2 > level 1.
You must set a proper level based on the actual scenario.
Multiplexing Function Level State I/O type Internal pull-up and pull-down resistance:
Level State I/O type Level State I/O type (It is recommended that
the pins marked with the L/H state
not be multiplexed as GPIO pins.)
See the DC/AC electrical specifications
in "Hardware" of the chip data sheet.
The level states are described as follows: L: output low level;
H: output high level; Z: high impedance; PU: input state with internal pull-up; PD: input state with internal pull-down; X: undetermined state;NA:don’t care.
EMMC_CLK IO4档位1 GPIO0_5 L X PD I GPIO0_5 PD I RPU4/RPD4 NA
NF_DQ6 L/H,由通信内容决定 B Nand Flash启动
EMMC_CLK L/H,由通信内容决定 O EMMC 启动
EMMC_CMD IO4档位1 GPIO0_6 H X PU I GPIO0_6 PU I RPU4/RPD4 NA
NF_DQ7 L/H,由通信内容决定 B Nand Flash启动
EMMC_CMD L/H,由通信内容决定 B EMMC 启动
EMMC_DATA0 IO4档位1 GPIO0_7 H X PU I GPIO0_7 PU I RPU4/RPD4 NA
NF_WEN L/H,由通信内容决定 O Nand Flash启动
EMMC_DATA0 L/H,由通信内容决定 B EMMC 启动
EMMC_DATA1 IO4档位1 GPIO1_0 H X PU I GPIO1_0 PU I RPU4/RPD4 NA
NF_ALE L/H,由通信内容决定 O Nand Flash启动
EMMC_DATA1 L/H,由通信内容决定 B EMMC 启动
EMMC_DATA2 IO4档位1 GPIO1_1 H X PU I GPIO1_1 PU I RPU4/RPD4 NA
NF_CLE L/H,由通信内容决定 O Nand Flash启动
EMMC_DATA2 L/H,由通信内容决定 B EMMC 启动
EMMC_DATA3 IO4档位1 GPIO1_2 H X PU I GPIO1_2 PU I RPU4/RPD4 NA
NF_DQ3 L/H,由通信内容决定 B Nand Flash启动
EMMC_DATA3 L/H,由通信内容决定 B EMMC 启动
EMMC_DATA4 IO4档位1 SFC_WP_IO2 H X PU I SFC_WP_IO2 L/H,由通信内容决定 B RPU4/RPD4 SPI Nor/Nand Flash启动
NF_DQ0 L/H,由通信内容决定 B Nand Flash启动
EMMC_DATA4 L/H,由通信内容决定 B 8线EMMC启动
EMMC_DATA5 IO4档位1 SFC_HOLD_IO3 H X PU I SFC_HOLD_IO3 L/H,由通信内容决定 B RPU4/RPD4 SPI Nor/Nand Flash启动
NF_DQ2 L/H,由通信内容决定 B Nand Flash启动
EMMC_DATA5 L/H,由通信内容决定 B 8线EMMC启动
EMMC_DATA6 IO4档位1 SFC_MISO_IO1 H X PU I SFC_MISO_IO1 L/H,由通信内容决定 B RPU4/RPD4 SPI Nor/Nand Flash启动
NF_DQ1 L/H,由通信内容决定 B Nand Flash启动
EMMC_DATA6 L/H,由通信内容决定 B 8线EMMC启动
EMMC_DATA7 IO4档位1 SFC_CLK H X L O SFC_CLK L/H,由通信内容决定 O RPU4/RPD4 SPI Nor/Nand Flash启动
NF_CSN L/H,由通信内容决定 O Nand Flash启动
EMMC_DATA7 L/H,由通信内容决定 B 8线EMMC启动
EMMC_DS IO4档位1 SFC_MOSI_IO0 L X PD I SFC_MOSI_IO0 L/H,由通信内容决定 B RPU4/RPD4 SPI Nor/Nand Flash启动
NF_DQ4 L/H,由通信内容决定 B Nand Flash启动
EMMC_DS L/H,由通信内容决定 I 8线EMMC启动
EMMC_RST_N IO2档位1 GPIO1_3 H X PU I GPIO1_3 PU I RPU1/RPD1 SPI Nor/Nand Flash启动
NF_DQ5 L/H,由通信内容决定 B Nand Flash启动
EMMC_RST_N L/H,由通信内容决定 O EMMC启动
SFC_CS0N IO2档位1 SFC_CS0N H X H O SFC_CS0N L/H,由通信内容决定 O RPU1/RPD1 SPI Nor/Nand Flash启动
NF_REN L/H,由通信内容决定 O Nand Flash启动
GPIO1_4 PU I NA
SFC_CS1N IO2档位1 SFC_CS1N H X H O SFC_CS1N L/H,由通信内容决定 O RPU1/RPD1 SPI Nor/Nand Flash启动
NF_RDY L/H,由通信内容决定 I Nand Flash启动
GPIO1_5 PU I NA
USB_1_VBUS IO2档位1 GPIO1_6 L X PD I GPIO1_6 PD I RPU1/RPD1 NA
USB_1_VBUS PU I USB升级
USB_1_PWREN IO2档位1 GPIO1_7 L X PD I GPIO1_7 PD I RPU1/RPD1 NA
USB_1_OVRCUR IO2档位1 GPIO2_0 L X PD I GPIO2_0 PD I RPU1/RPD1 NA
USB_0_PWREN IO2档位1 GPIO2_1 L X PD I GPIO2_1 PD I RPU1/RPD1 NA
USB_0_OVRCUR IO2档位1 GPIO2_2 L X PD I GPIO2_2 PD I RPU1/RPD1 NA
SVB_PWM0 IO2档位1 GPIO2_3 L X PD I GPIO2_3 PD I RPU1/RPD1 NA
SVB_PWM1 IO2档位1 GPIO2_4 L X PD I GPIO2_4 PD I RPU1/RPD1 NA
SVB_PWM2 IO2档位1 GPIO2_5 L X PD I GPIO2_5 PD I RPU1/RPD1 NA
RGMII0_RXD3 IO5_1档位1 GPIO2_6 L X PD I GPIO2_6 PD I RPU2/RPD2 NA
RGMII0_RXD2 IO5_1档位1 GPIO2_7 L X PD I GPIO2_7 PD I RPU2/RPD2 NA
RGMII0_RXD1 IO5_1档位1 GPIO3_0 L X PD I GPIO3_0 PD I RPU2/RPD2 NA
RGMII0_RXD0 IO5_1档位1 GPIO3_1 L X PD I GPIO3_1 PD I RPU2/RPD2 NA
RGMII0_RXDV IO5_1档位1 GPIO3_2 L X PD I GPIO3_2 PD I RPU2/RPD2 NA
RGMII0_RXCK IO5_1档位1 GPIO3_3 L X PD I GPIO3_3 PD I RPU2/RPD2 NA
RGMII0_TXD3 IO5_1档位1 GPIO3_4 L X PD I GPIO3_4 PD I RPU2/RPD2 NA
RGMII0_TXD2 IO5_1档位1 GPIO3_5 L X PD I GPIO3_5 PD I RPU2/RPD2 NA
RGMII0_TXD1 IO5_1档位1 GPIO3_6 L X PD I GPIO3_6 PD I RPU2/RPD2 NA
RGMII0_TXD0 IO5_1档位1 GPIO3_7 L X PD I GPIO3_7 PD I RPU2/RPD2 NA
RGMII0_TXEN IO5_1档位1 GPIO4_0 L X PD I GPIO4_0 PD I RPU2/RPD2 NA
RGMII0_TXCKOUT IO5_1档位1 TEST_CLK L X L O TEST_CLK L/H,由通信内容决定 O RPU2/RPD2 NA
EPHY0_CLK IO5_1档位1 GPIO4_2 L X PD I GPIO4_2 PD I RPU2/RPD2 NA
EPHY0_RSTN IO5_1档位1 GPIO4_3 L X PD I GPIO4_3 PD I RPU2/RPD2 NA
MDCK0 IO5_1档位1 GPIO4_4 L X PD I GPIO4_4 PD I RPU2/RPD2 NA
MDIO0 IO5_1档位1 GPIO4_5 L X PD I GPIO4_5 PD I RPU2/RPD2 NA
SDIO1_CDATA0 IO5_1档位1 GPIO4_6 L X PD I GPIO4_6 PD I RPU2/RPD2 NA
SDIO1_CDATA1 IO5_1档位1 GPIO4_7 L X PD I GPIO4_7 PD I RPU2/RPD2 NA
SDIO1_CDATA2 IO5_1档位1 GPIO5_0 L X PD I GPIO5_0 PD I RPU2/RPD2 NA
SDIO1_CDATA3 IO5_1档位1 GPIO5_1 L X PD I GPIO5_1 PD I RPU2/RPD2 NA
SDIO1_CCLK_OUT IO5_1档位1 GPIO5_2 L X PD I GPIO5_2 PD I RPU2/RPD2 NA
SDIO1_CCMD IO5_1档位1 GPIO5_3 L X PD I GPIO5_3 PD I RPU2/RPD2 NA
GPIO0_0 IO5_1档位1 GPIO0_0 L X PU I GPIO0_0 PU I RPU2/RPD2 NA
GPIO0_1 IO5_1档位1 GPIO0_1 L X PD I GPIO0_1 PD I RPU2/RPD2 NA
UART1_RXD IO5_1档位1 GPIO5_4 L X PD I GPIO5_4 PD I RPU2/RPD2 NA
UART1_TXD IO5_1档位1 GPIO5_5 L X PD I GPIO5_5 PD I RPU2/RPD2 NA
UART1_RTSN IO5_1档位1 GPIO5_6 L X PD I GPIO5_6 PD I RPU2/RPD2 NA
UART1_CTSN IO5_1档位1 GPIO5_7 L X PD I GPIO5_7 PD I RPU2/RPD2 NA
UART2_RXD IO5_1档位1 GPIO6_0 L X PD I GPIO6_0 PD I RPU2/RPD2 NA
UART2_TXD IO5_1档位1 GPIO6_1 L X PD I GPIO6_1 PD I RPU2/RPD2 NA
UART2_RTSN IO5_1档位1 GPIO6_2 L X PD I GPIO6_2 PD I RPU2/RPD2 NA
UART2_CTSN IO5_1档位1 GPIO6_3 L X PD I GPIO6_3 PD I RPU2/RPD2 NA
SDIO0_CARD_DETECT IO5_1档位1 GPIO6_4 L X PD I GPIO6_4 PD I RPU2/RPD2 NA
SDIO0_CARD_DETECT L/H,由通信内容决定 I SD卡升级
SDIO0_CARD_POWER_EN_N IO5_1档位1 GPIO6_5 L X PD I GPIO6_5 PD I RPU2/RPD2 NA
SDIO0_CARD_POWER_EN_N L/H,由通信内容决定 O SD卡升级
SDIO0_CCMD IO5_2档位1 GPIO6_6 L X PD I GPIO6_6 PD I RPU3/RPD3 NA
SDIO0_CCMD L/H,由通信内容决定 B SD卡升级
SDIO0_CDATA0 IO5_2档位1 GPIO6_7 L X PD I GPIO6_7 PD I RPU3/RPD3 NA
SDIO0_CDATA0 L/H,由通信内容决定 B SD卡升级
SDIO0_CDATA1 IO5_2档位1 GPIO7_0 L X PD I GPIO7_0 PD I RPU3/RPD3 NA
SDIO0_CDATA1 L/H,由通信内容决定 B SD卡升级
SDIO0_CDATA2 IO5_2档位1 GPIO7_1 L X PD I GPIO7_1 PD I RPU3/RPD3 NA
SDIO0_CDATA2 L/H,由通信内容决定 B SD卡升级
SDIO0_CDATA3 IO5_2档位1 GPIO7_2 L X PD I GPIO7_2 PD I RPU3/RPD3 NA
SDIO0_CDATA3 L/H,由通信内容决定 B SD卡升级
SDIO0_CCLK_OUT IO5_2档位1 GPIO7_3 L X PD I GPIO7_3 PD I RPU3/RPD3 NA
SDIO0_CCLK_OUT L/H,由通信内容决定 O SD卡升级
DSI_D3N NA DSI_D3N Z X Z X DSI_D3N Z X NA NA
DSI_D3P NA DSI_D3P Z X Z X DSI_D3P Z X NA NA
DSI_D1N NA DSI_D1N Z X Z X DSI_D1N Z X NA NA
DSI_D1P NA DSI_D1P Z X Z X DSI_D1P Z X NA NA
DSI_CKN NA DSI_CKN Z X Z X DSI_CKN Z X NA NA
DSI_CKP NA DSI_CKP Z X Z X DSI_CKP Z X NA NA
DSI_D0N NA DSI_D0N Z X Z X DSI_D0N Z X NA NA
DSI_D0P NA DSI_D0P Z X Z X DSI_D0P Z X NA NA
DSI_D2N NA DSI_D2N Z X Z X DSI_D2N Z X NA NA
DSI_D2P NA DSI_D2P Z X Z X DSI_D2P Z X NA NA
SPI2_SCLK IO2档位1 GPIO8_6 L X PD I GPIO8_6 PD I RPU1/RPD1 NA
SPI2_SDO IO2档位1 GPIO8_7 L X PD I GPIO8_7 PD I RPU1/RPD1 NA
SPI2_SDI IO2档位1 GPIO9_0 L X PD I GPIO9_0 PD I RPU1/RPD1 NA
SPI2_CSN IO2档位1 GPIO9_1 L X PD I GPIO9_1 PD I RPU1/RPD1 NA
VSYNC_TE_MIPITX IO2档位1 GPIO0_2 L X PD I GPIO0_2 PD I RPU1/RPD1 NA
GPIO0_3 IO2档位1 GPIO0_3 L X PD I GPIO0_3 PD I RPU1/RPD1 NA
GPIO0_4 IO2档位1 GPIO0_4 L X PD I GPIO0_4 PD I RPU1/RPD1 NA
HDMI_HOTPLUG IO6_2档位1 GPIO9_2 L X Z I GPIO9_2 Z I NA NA
HDMI_SDA IO6_2档位1 GPIO9_3 L X Z I GPIO9_3 Z I NA NA
HDMI_SCL IO6_2档位1 GPIO9_4 L X Z I GPIO9_4 Z I NA NA
LSADC_CH0 IO2档位1 LSADC_CH0 L X PD I LSADC_CH0 PD I RPU1/RPD1 NA
LSADC_CH1 IO2档位1 LSADC_CH1 L X PD I LSADC_CH1 PD I RPU1/RPD1 NA
LSADC_CH2 IO2档位1 LSADC_CH2 L X PD I LSADC_CH2 PD I RPU1/RPD1 NA
LSADC_CH3 IO2档位1 LSADC_CH3 L X PD I LSADC_CH3 PD I RPU1/RPD1 NA
JTAG_TRSTN IO2档位1 JTAG_TRSTN L X PD I JTAG_TRSTN PD I RPU1/RPD1 NA
JTAG_TCK IO2档位1 JTAG_TCK L X PD I JTAG_TCK PD I RPU1/RPD1 NA
JTAG_TMS IO2档位1 JTAG_TMS H X PU I JTAG_TMS PU I RPU1/RPD1 NA
JTAG_TDO IO2档位1 JTAG_TDO L X PD I JTAG_TDO PD I RPU1/RPD1 NA
L/H,由通信内容决定 O BootRom JTAG调试开启
JTAG_TDI IO2档位1 JTAG_TDI H X PU I JTAG_TDI PU I RPU1/RPD1 NA
WDG_RSTN IO2档位1 WDG_RSTN L X PD I WDG_RSTN PD O RPU1/RPD1 POR_ENABLE==0
SYS_RSTN_OUT L O SYS_RSTN_OUT H O POR_ENABLE==1
RSTN IO2档位1 RSTN H X PU I RSTN PU I RPU1/RPD1 NA
TEST_MODE IO2档位1 TEST_MODE L X PD I TEST_MODE PD I RPU1/RPD1 NA
POR_ENABLE IO2档位1 POR_ENABLE H X PU I POR_ENABLE PU I RPU1/RPD1 NA
UART0_RXD IO2档位1 GPIO10_6 H X PU I UART0_RXD PU I RPU1/RPD1 NA
UART0_TXD IO2档位1 GPIO10_7 L X PD I UART0_TXD PD I RPU1/RPD1 NA
UART3_RXD IO2档位1 GPIO11_0 L X PD I GPIO11_0 PD I RPU1/RPD1 NA
UART3_TXD IO2档位1 GPIO11_1 L X PD I GPIO11_1 PD I RPU1/RPD1 NA
UART4_RXD IO2档位1 GPIO11_2 L X PD I GPIO11_2 PD I RPU1/RPD1 NA
UART4_TXD IO2档位1 GPIO11_3 L X PD I GPIO11_3 PD I RPU1/RPD1 NA
I2C0_SDA IO6_2档位1 GPIO11_4 L X Z I GPIO11_4 Z I NA NA
I2C0_SCL IO6_2档位1 GPIO11_5 L X Z I GPIO11_5 Z I NA NA
SENSOR1_HS IO2档位1 GPIO11_6 L X PD I GPIO11_6 PD I RPU1/RPD1 NA
SENSOR1_VS IO2档位1 GPIO11_7 H X PU I GPIO11_7 PU I RPU1/RPD1 NA
SENSOR1_RSTN IO2档位1 GPIO12_0 L X PD I GPIO12_0 PD I RPU1/RPD1 NA
SENSOR1_CLK IO2档位1 GPIO12_1 L X PD I GPIO12_1 PD I RPU1/RPD1 NA
SPI1_CSN1 IO2档位1 GPIO12_2 L X PD I GPIO12_2 PD I RPU1/RPD1 NA
SPI1_CSN0 IO2档位1 GPIO12_3 L X PD I GPIO12_3 PD I RPU1/RPD1 NA
SPI1_SDI IO2档位1 GPIO12_4 L X PD I GPIO12_4 PD I RPU1/RPD1 NA
SPI1_SDO IO2档位1 GPIO12_5 L X PD I GPIO12_5 PD I RPU1/RPD1 NA
SPI1_SCLK IO2档位1 GPIO12_6 L X PD I GPIO12_6 PD I RPU1/RPD1 NA
MIPI_RX1_D0N NA MIPI_RX1_D0N Z X Z X MIPI_RX1_D0N Z X NA NA
MIPI_RX1_D0P NA MIPI_RX1_D0P Z X Z X MIPI_RX1_D0P Z X NA NA
MIPI_RX1_D2N NA MIPI_RX1_D2N Z X Z X MIPI_RX1_D2N Z X NA NA
MIPI_RX1_D2P NA MIPI_RX1_D2P Z X Z X MIPI_RX1_D2P Z X NA NA
MIPI_RX1_CK0N NA MIPI_RX1_CK0N Z X Z X MIPI_RX1_CK0N Z X NA NA
MIPI_RX1_CK0P NA MIPI_RX1_CK0P Z X Z X MIPI_RX1_CK0P Z X NA NA
MIPI_RX1_CK1N NA MIPI_RX1_CK1N Z X Z X MIPI_RX1_CK1N Z X NA NA
MIPI_RX1_CK1P NA MIPI_RX1_CK1P Z X Z X MIPI_RX1_CK1P Z X NA NA
MIPI_RX1_D1N NA MIPI_RX1_D1N Z X Z X MIPI_RX1_D1N Z X NA NA
MIPI_RX1_D1P NA MIPI_RX1_D1P Z X Z X MIPI_RX1_D1P Z X NA NA
MIPI_RX1_D3N NA MIPI_RX1_D3N Z X Z X MIPI_RX1_D3N Z X NA NA
MIPI_RX1_D3P NA MIPI_RX1_D3P Z X Z X MIPI_RX1_D3P Z X NA NA
MIPI_RX0_D0N NA MIPI_RX0_D0N Z X Z X MIPI_RX0_D0N Z X NA NA
MIPI_RX0_D0P NA MIPI_RX0_D0P Z X Z X MIPI_RX0_D0P Z X NA NA
MIPI_RX0_D2N NA MIPI_RX0_D2N Z X Z X MIPI_RX0_D2N Z X NA NA
MIPI_RX0_D2P NA MIPI_RX0_D2P Z X Z X MIPI_RX0_D2P Z X NA NA
MIPI_RX0_CK0N NA MIPI_RX0_CK0N Z X Z X MIPI_RX0_CK0N Z X NA NA
MIPI_RX0_CK0P NA MIPI_RX0_CK0P Z X Z X MIPI_RX0_CK0P Z X NA NA
MIPI_RX0_CK1N NA MIPI_RX0_CK1N Z X Z X MIPI_RX0_CK1N Z X NA NA
MIPI_RX0_CK1P NA MIPI_RX0_CK1P Z X Z X MIPI_RX0_CK1P Z X NA NA
MIPI_RX0_D1N NA MIPI_RX0_D1N Z X Z X MIPI_RX0_D1N Z X NA NA
MIPI_RX0_D1P NA MIPI_RX0_D1P Z X Z X MIPI_RX0_D1P Z X NA NA
MIPI_RX0_D3N NA MIPI_RX0_D3N Z X Z X MIPI_RX0_D3N Z X NA NA
MIPI_RX0_D3P NA MIPI_RX0_D3P Z X Z X MIPI_RX0_D3P Z X NA NA
SENSOR0_CLK IO2档位1 GPIO15_7 L X PD I GPIO15_7 PD I RPU1/RPD1 NA
SENSOR0_RSTN IO2档位1 GPIO16_0 H X PU I GPIO16_0 PU I RPU1/RPD1 NA
SENSOR0_HS IO2档位1 GPIO16_1 L X PD I GPIO16_1 PD I RPU1/RPD1 NA
SENSOR0_VS IO2档位1 GPIO16_2 L X PD I GPIO16_2 PD I RPU1/RPD1 NA
SPI0_SCLK IO2档位1 GPIO16_3 L X PD I GPIO16_3 PD I RPU1/RPD1 NA
SPI0_SDO IO2档位1 GPIO16_4 L X PD I GPIO16_4 PD I RPU1/RPD1 NA
SPI0_SDI IO2档位1 GPIO16_5 L X PD I GPIO16_5 PD I RPU1/RPD1 NA
SPI0_CSN IO2档位1 GPIO16_6 L X PD I GPIO16_6 PD I RPU1/RPD1 NA
PWM0_OUT0_0_P IO2档位1 GPIO16_7 L X PD I GPIO16_7 PD I RPU1/RPD1 NA
PWM0_OUT1_0_P IO2档位1 GPIO17_0 L X PD I GPIO17_0 PD I RPU1/RPD1 NA