DocID018909 Rev 11 1235/1731
RM0090 USB on-the-go full-speed (OTG_FS)
1368
34.2.3 Peripheral-mode features
The OTG_FS interface main features in peripheral-mode are the following:
• 1 bidirectional control endpoint0
• 3 IN endpoints (EPs) configurable to support Bulk, Interrupt or Isochronous transfers
• 3 OUT endpoints configurable to support Bulk, Interrupt or Isochronous transfers
• Management of a shared Rx FIFO and a Tx-OUT FIFO for efficient usage of the USB
data RAM
• Management of up to 4 dedicated Tx-IN FIFOs (one for each active IN EP) to put less
load on the application
• Support for the soft disconnect feature.
34.3 OTG_FS functional description
Figure 386. OTG full-speed block diagram
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6
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0(9
53"
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+BYTES
53"DATA
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!("0ERIPHERAL
0OWER
#LOCK
#42,
53")NTERRUPT
53"SUSPEND
53"#LOCKAT-(Z
#ORTEXCORE
3YSTEMCLOCK
DOMAIN
53"CLOCK
DOMAIN
5NIVERSALSERIALBUS
2!-BUS
-36
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