For additional information, see the On-The-Go Supplement to the USB 2.0 Specification.
Print Photos
Keyboard Input
Swap Songs
Hot Sync
Download Songs
Figure 42-2. Example USB 2.0 On-The-Go configurations
42.1.3 USBFS Features
• USB 1.1 and 2.0 compliant full-speed device controller
• 16 bidirectional end points
• DMA or FIFO data stream interfaces
• Low-power consumption
• On-The-Go protocol logic
• IRC48 with clock-recovery is supported to eliminate the 48 MHz crystal. It is used
for USB device-only implementation.
42.2 Functional description
USBOTG communicates with the processor core through status registers, control
registers, and data structures in memory.
Chapter 42 Universal Serial Bus Full Speed OTG Controller (USBFSOTG)
K22F Sub-Family Reference Manual , Rev. 3, 7/2014
Freescale Semiconductor, Inc.
991
