SPRUJB3 March 2024 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
Table 5-31 shows configuration pins assignment to functions when boot mode is the USB mode.
USB Configuration Fields for Primary Boot Mode | |||
---|---|---|---|
BOOTMODE Pins | Field | Value | Description |
9 | CoreVoltage | 0 | Must be set |
1 | Reserved | ||
8 (13(1)) | Mode | 0 | DFU (USB device firmware upgrade) |
1 | Host (MSC boot) | ||
7 | Lane Swap | 0 | D+/D- lines are not swapped |
1 | D+/D- lines are swapped |
Table 5-32 summarizes the USB pin configuration done by ROM code for USB boot device on port 0.
Device Pin | Module Signal | Pull Enable | Pull Direction | Driver Index | Rx En/Dis | Pinmux Sel | Pad Configuration Register |
---|---|---|---|---|---|---|---|
USB0_DRVVBUS | USB0_DRVVBUS | Disable | NA | 0 | Disable | 0 | PADCONFIG149 |
Note that other USB pins do not have pin mux options. USB_DRVVBUS is configured in DFU mode even though it is not used.
Note on USB backup boot:
Configurability (pins) of these options do not exist in the USB backup boot mode.