USB3319 Standard Microsystems Corporation, USB3319 Datasheet - Page 3

• Manufacturer Part Number: USB3319
• Description: Hi-speed USB Transceiver with 1.8V ULPI Interface - 13mhz Reference Clock
• Manufacturer: Standard Microsystems Corporation

Hi-Speed USB Transceiver with 1.8V ULPI Interface - 13MHz Reference Clock
General Description
SMSC USB3319
VBUS
DM
DP
ID
The USB3319 is a highly integrated Hi-Speed USB 2.0 Transceiver (PHY) that supports systems
architectures based on a 13MHz reference clock. It is designed to be used in both commercial and
industrial temperature applications.
The USB3319 meets all of the electrical requirements to be used as a Hi-Speed USB Host, Device,
or an On-the-Go (OTG) device. In addition to the supporting USB signaling the USB3319 also provides
USB UART mode and USB Audio mode.
USB3319 uses the industry standard UTMI+ Low Pin Interface (ULPI) to connect the USB PHY to the
Link. The industry standard ULPI interface uses a method of in-band signaling and status byte transfers
between the Link and PHY, to facilitate a USB session. By using in-band signaling and status byte
transfers the ULPI interface requires only 12 pins.
The USB3319 uses SMSC’s “wrapper-less” technology to implement the ULPI interface. This “wrapper-
less” technology allows the PHY to achieve a low latency transmit and receive time. SMSC’s low
latency transceiver allows an existing UTMI Link to be reused by adding a UTMI to ULPI bridge. By
adding a bridge to the ASIC the existing and proven UTMI Link IP can be reused.
Transceiver
Hi-Speed
Carkit
OTG
USB
Figure 1 USB3319 Block Diagram
PRODUCT PREVIEW
Integrated
Low Jitter
and State
REFCLK
Registers
3
Machine
ULPI
PLL
Management
Integrated
Interface
DATA[7:0]
Power
BIAS
ULPI
Revision 1.3 (11-02-07)
RBIAS
RESETB
VBAT
VDD33
VDD18
STP
NXT
DIR
CLKOUT