SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The primary boot mode is the first mode attempted after reset. Table 4-4 lists all possible primary boot modes. All pins marked as reserved can be either 0 or 1. All boot mode signals must be pulled low or high through a pull resistor on the board, they must not be left floating
Primary Boot Mode Config | Primary Boot Mode | ||||||
---|---|---|---|---|---|---|---|
B9 | B8 | B7 | B6 | B5 | B4 | B3 | |
Reserved | Reserved | Reserved | 0 | 0 | 0 | 0 | Reserved |
Reserved | Iclk | Csel | 0 | 0 | 0 | 1 | OSPI |
Reserved | Iclk | Csel | 0 | 0 | 1 | 0 | QSPI |
Reserved | Mode | Csel | 0 | 0 | 1 | 1 | SPI |
Clkout | 0 | Link Info | 0 | 1 | 0 | 0 | Ethernet RGMII |
Clkout | Clk src | 0 | 0 | 1 | 0 | 1 | Ethernet RMII |
Bus reset | Reserved | Addr | 0 | 1 | 1 | 0 | I2C |
Reserved | Reserved | Reserved | 0 | 1 | 1 | 1 | UART |
Port | Reserved | Fs/raw | 1 | 0 | 0 | 0 | MMCSD Boot (SD Card Boot or eMMC Boot using UDA) |
Reserved | Reserved | Reserved | 1 | 0 | 0 | 1 | eMMC Boot |
Reserved | Mode | Lane Swap | 1 | 0 | 1 | 0 | USB |
Reserved | Reserved | Reserved | 1 | 0 | 1 | 1 | GPMC NAND |
Reserved | Reserved | Reserved | 1 | 1 | 0 | 0 | GPMC NOR |
Reserved | Reserved | Clocking | 1 | 1 | 0 | 1 | PCIe |
SFPD | Read Cmd | Mode | 1 | 1 | 1 | 0 | xSPI |
Reserved | Reserved | No/Dev | 1 | 1 | 1 | 1 | No-boot/Dev boot |