How many endpoints are there for the USB interface in the HT82A851R? What kind of transmission type does each endpoint support and what is the FIFO capacity?
Answer The USB Interface in the HT82A851R has a total of 5 endpoints, EP0~EP4. Endpoint 0 (EP0), supports control transmission and its FIFO capacity is 8 bytes. Endpoint 1 (EP1), supports interrupt transmission and its FIFO capacity is 8 bytes. Endpoint 2 (EP2), supports synchronous output transmission and its FIFO capacity is 384 bytes. Endpoint 3 (EP3), supports synchronous input transmission and its FIFO capacity is 32 bytes. Endpoint 4 (EP4), supports interrupt transmission and its FIFO capacity is 32 bytes.
