SPRUJB3 March 2024 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
Table 5-24 shows configuration pins assignment to functions when boot mode is the SD card boot mode.
SD Card Boot Configuration Fields | |||
---|---|---|---|
BOOTMODE Pins | Field | Value | Description |
9 (13(1)) | Port | 0 | Reserved |
1 | MMC Port 1 (4 bit width). This bit must be set to 1 | ||
7 | FS/Raw | 0 | Filesystem mode |
1 | Raw Mode |
Table 5-23 summarizes the MMCSD pin configuration done by ROM code for SD Card boot on port1 (MMCSD1). SD Card boot on Port 0 (MMCSD0) is not supported.
Device Pin | Module Signal | Pull Enable | Pull Direction | Driver Index | Rx En/Dis | Pinmux Sel | Pad Configuration Register |
---|---|---|---|---|---|---|---|
MMC1_DAT3 | MMC1_DAT3 | Disable | NA | 0 | Enable | 0 | PADCONFIG137 |
MMC1_DAT2 | MMC1_DAT2 | Disable | NA | 0 | Enable | 0 | PADCONFIG138 |
MMC1_DAT1 | MMC1_DAT1 | Disable | NA | 0 | Enable | 0 | PADCONFIG139 |
MMC1_DAT0 | MMC1_DAT0 | Disable | NA | 0 | Enable | 0 | PADCONFIG140 |
MMC1_CLK | MMC1_CLK | Disable | NA | 0 | Enable | 0 | PADCONFIG141 |
MMC1_CLKLB | MMC1_CLKLB | Disable | NA | 0 | Enable | 0 | PADCONFIG142 |
MMC1_CMD | MMC1_CMD | Disable | NA | 0 | Enable | 0 | PADCONFIG143 |
MMC1_SDCD | MMC1_SDCD | Disable | NA | 0 | Enable | 0 | PADCONFIG144 |
MMC1_CLKLB signal is not pinned out on the device. The pinmux configuration enables the input buffer of the internal loopback clock.
MMC1_SDWP is not configured by ROM since the ROM never writes to the SD card.