USB3320C-EZK-TR Standard Microsystems (SMSC), USB3320C-EZK-TR Datasheet - Page 60

• 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

Revision 1.0 (07-14-09)
SessVld
VbusVld
IdGndDrv
IdGround
IdFloat
IdPullup330
IdPullup
SIGNAL
The ULPI interface is redefined as shown in
Exiting Headset Audio Mode is the same as exiting Low Power Mode as described in
The Link must assert STP to signal the PHY to exit. When the PHY can accept a command, DIR is
de-asserted and the PHY will wait until the Link de-asserts STP to resume synchronous ULPI
operation. The RESETB pin can also be pulsed low to reset the USB3320 and return it to Synchronous
Mode.
CONNECTED
DATA[0]
DATA[1]
DATA[2]
DATA[3]
DATA[4]
DATA[5]
DATA[6]
DATA[7]
TO
Table 6.10 Pin Definitions in Headset Audio Mode
OUT
OUT
IN
OUT
OUT
OUT
IN
IN
DIRECTION
DATASHEET
DESCRIPTION
Output of SessVld comparator
Output of VbusVld Comparator (interrupt must be enabled)
Drives ID pin to ground when asserted
0b: Not connected
1b: Connects ID to ground.
Driven low
Asserted when the ID pin is grounded.
0b: ID pin is grounded
1b: ID pin is floating
Asserted when the ID pin is floating. IdPullup or
d_pullup330 must be enabled as shown below.
When enabled a 330kΩpullup is applied to the ID pin. This
bit will also change the trip point of the IdGnd comparator
to the value shown in
0b: Disables the pull-up resistor
1b: Enables the pull-up resistor
Connects the 100kΩ pull-up resistor from the ID pin to
VDD3.3
0b: Disables the pull-up resistor
1b: Enables the pull-up resistor
60
Table 6.10
when Headset Audio Mode is entered.
Highly Integrated Full Featured Hi-Speed USB 2.0 ULPI Transceiver
Table
4.7.
SMSC USB3320
Section
Datasheet
6.3.2.