Atmel AT43DK370, User Manual

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USB Clinic
4-8 AT43DK370 USB Host/Function Dev. Kit User Guide
3423C–USB–1/04
4.7 Data Transfer
The Data Transfer functions contain all types of data exchange methods between the
devices and the Host. The functions includes Get/Send ISO Data (for Isochronous
Transfer), Get/Send Data (for Interrupt, Bulk, and Control Transfer), Control Transfer
(for Control Transfer), and Custom Transfer (for All Transfer Types).
Figure 4-9. USB Clinic - Data Transfer
4.7.1 Get ISO Data The Get ISO Data command gets data from a USB device from its Isochronous (ISO)
endpoints. The user has to enter the Device Address of the device with the proper ISO
Endpoint, Packet Size, and the Buffer Size allocated for this operation.
4.7.2 Send ISO Data The Send ISO Data command sends data to a USB device to its Isochronous (ISO)
endpoints. The user has to enter the Device Address of the device with the proper ISO
Endpoint, Packet Size, and the Buffer Size allocated for this operation.
4.7.3 Get Data The Get Data command gets data from a USB device from the Non-Isochronous end-
points, such as Interrupt, Bulk and Control. The user has to enter the Device Address of
the device, the Endpoint intended, the number of Retries allowed, the number of NAKs
allowed, and the Buffer Size allocated for the operation.
4.7.4 Send Data The Send Data command sends data to a USB device to the Non-Isochronous end-
points, such as Interrupt, Bulk and Control. The user has to enter the Device Address of
the device, the Endpoint intended, the number of Retries allowed, the number of NAKs
allowed, and the Buffer Size allocated for the operation.