USB on-the-go full-speed/high-speed (OTG_FS/OTG_HS) RM0390
1208/1328 RM0390 Rev 4
Figure 411. Receive FIFO read task
• Bulk and control OUT/SETUP transactions
A typical bulk or control OUT/SETUP pipelined transaction-level operation is shown in
Figure 412. See channel 1 (ch_1). Two bulk OUT packets are transmitted. A control
SETUP transaction operates in the same way but has only one packet. The
assumptions are:
– The application is attempting to send two maximum-packet-size packets (transfer
size = 1, 024 bytes).
– The non-periodic transmit FIFO can hold two packets (1 KB for HS/128 bytes for
FS).
– The non-periodic request queue depth = 4.
• Normal bulk and control OUT/SETUP operations
The sequence of operations in (channel 1) is as follows:
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