at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 826

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

41.5
826
Typical Connection
AT91SAM9263 Preliminary
Figure 41-4. Board Schematic to Interface UHP Device Controller
As device connection is automatically detected by the USB host port logic, a pull-down must be
connected on DP and DM on the board. Otherwise the USB host permanently detects a device
connection on this port.
A termination serial resistor must be connected to HDP and HDM. The resistor value is defined
in the electrical specification of the product (R
HDMA
HDMB
• Host controller hardware and serial engine: Transmits and receives USB data on the bus.
• Host controller driver: Drives the Host controller hardware and handles the USB protocol.
• USB Bus driver and hub driver: Handles USB commands and enumeration. Offers a
• Mini driver: Handles device specific commands.
• Class driver: Handles standard devices. This acts as a generic driver for a class of devices,
HDPA
HDPB
or
hardware independent interface.
for example the HID driver.
or
5V
R
R
EXT
EXT
10 F
15k
100nF
EXT
).
0.20A
15k
10nF
6249D–ATARM–20-Dec-07
Type A Connector