udd_sram_data Struct Reference

USB SRAM data about fifo, endpoint descriptor table and frame number.

The content of the USB SRAM can be:

• modified by USB hardware by interface to signal endpoint status. Thereby, it is read by software.
• modified by USB software to control endpoint. Thereby, it is read by hardware. This data section is volatile and the specific opcode read/modify/write must be used.

Data Fields
USB_EP_t	ep_ctrl [2 *(USB_DEVICE_MAX_EP+1)]
uint32_t	fifo [USB_DEVICE_MAX_EP+1]
uint16_t	frame_number

USB_EP_t udd_sram_data::ep_ctrl[2 *(USB_DEVICE_MAX_EP+1)]

uint32_t udd_sram_data::fifo[USB_DEVICE_MAX_EP+1]

uint16_t udd_sram_data::frame_number