mcu:MSP430x5xx
mcu:NUC121
mcu:SAMD11
# DCD has no isochronous support (dcd_edpt_iso_alloc refuses), tier-4 cannot enumerate:
mcu:CXD56
mcu:FT90X
mcu:NUC100
mcu:NUC120
mcu:NUC505
mcu:PIC32MZ
mcu:SAMG
mcu:SAMX7X
mcu:VALENTYUSB_EPTRI
