Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK Data Sheet
Product codes
AT91SAM9X25-EK
530
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
32.
USB High Speed Device Port (UDPHS)
32.1 Description
The USB High Speed Device Port (UDPHS) is compliant with the Universal Serial Bus (USB), rev 2.0 High Speed device
specification.
specification.
Each endpoint can be configured in one of several USB transfer types. It can be associated with one, two or three banks
of a Dual-port RAM used to store the current data payload. If two or three banks are used, one DPR bank is read or
written by the processor, while the other is read or written by the USB device peripheral. This feature is mandatory for
isochronous endpoints.
of a Dual-port RAM used to store the current data payload. If two or three banks are used, one DPR bank is read or
written by the processor, while the other is read or written by the USB device peripheral. This feature is mandatory for
isochronous endpoints.
32.2 Embedded Characteristics
1 Device High Speed
1 UTMI transceiver shared between Host and Device
USB v2.0 High Speed Compliant, 480 Mbits Per Second
7 Endpoints up to 1024 bytes
Embedded Dual-port RAM for Endpoints
Suspend/Resume Logic (Command of UTMI)
Up to Three Memory Banks for Endpoints (Not for Control Endpoint)
4
Kbytes of DPRAM