USB3320C-EZK-TR Standard Microsystems (SMSC), USB3320C-EZK-TR Datasheet - Page 39

• Manufacturer Part Number: USB3320C-EZK-TR
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB3320C-EZK-TR

• Number Of Transceivers: 1
• Esd Protection: YeskV
• Operating Supply Voltage (typ): Not RequiredV
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): Not RequiredV
• Operating Supply Voltage (min): Not RequiredV
• Pin Count: 32
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / RoHS Status: Compliant

Highly Integrated Full Featured Hi-Speed USB 2.0 ULPI Transceiver
Datasheet
SMSC USB3320
5.6.3
5.7
5.8
Supply
VBUS
+5V
For example, protecting a peripheral or device only application to 15V would require a 10kΩ R
resistor with a power rating of 0.01W. To protect an OTG product to 15V would require a 1kΩ R
resistor with a power rating of 0.1W.
Driving External VBUS
The USB3320 monitors VBUS as described in
applications, the system is required to source 5 volts on VBUS. The USB3320 fully supports VBUS
power control using an external VBUS switch as shown in
high control signal, CPEN, that is dedicated to controlling the Vbus supply when configured as an A-
Device.
CPEN is asserted by setting the DrvVbus or DrvVbusExternal bit of the
compatible with Link designs that support both internal and external Vbus supplies the DrvVbus and
DrvVbusExternal bits in the OTG Control Register are or’d together. This enables the Link to set either
bit to access the external Vbus enable (CPEN). This logic is shown in
DrvVbusExternal are set to 0 on
The USB3320 provides support for the USB UART interface as detailed in the ULPI specification and
the former CEA-936A specification. The USB3320 can be placed in UART Mode using the method
described in
the UART RegOutput bits in the
Linestate signals cannot be monitored on the DATA[0] and DATA[1] pins.
To support the detection and identification of different types of USB chargers the USB3320 provides
integrated pull-up resistors, R
ended receivers can be used to help determine the type of USB charger attached. Reference
information on implementing charger detection is provided in SMSC Application Note AN 19.7 - Battery
Charging Using SMSC USB Transceivers.
USB UART Support
USB Charger Detection Support
Figure 5.12 USB3320 Drives Control Signal (CPEN) to External Vbus Switch
Connector
5V
USB
EN
IN
VBUS
Switch
VBUS
DM
DP
Section
OUT
6.5, and the regulator output will automatically switch to the value configured by
R
VBUS
CPEN
VBUS
DM
DP
CD
, on both DP and DM. These pull-up resistors along with the single
Power On Reset (POR)
USB IO & Power Management
DATASHEET
39
USB Transceiver
DrvVbus
DrvVbusExternal
CPEN Logic
VBUS Monitor and
Figure
as shown in
8.3. The USB3320 provides an active
register. While in UART mode, the
Section
Pulsing. For OTG and Host
OTG Control
ULPI
Figure
7.1.1.7.
Revision 1.0 (07-14-09)
Controller
5.12. DrvVbus and
Link
register. To be
VBUS
VBUS