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USB3300 датащи(PDF) 19 Page - SMSC Corporation

номер детали USB3300
подробное описание детали  Hi-Speed USB Host, Device or OTG PHY with ULPI Low Pin Interface
PDF  55 Pages
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производитель  SMSC [SMSC Corporation]
домашняя страница  http://www.smsc.com
Logo SMSC - SMSC Corporation

USB3300 датащи(HTML) 19 Page - SMSC Corporation

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Hi-Speed USB Host, Device or OTG PHY with ULPI Low Pin Interface
Datasheet
SMSC USB3300
19
Revision 1.08 (11-07-07)
DATASHEET
Chapter 6 Architecture Overview
The USB3300 architecture can be broken down into the following blocks shown in Figure 6.1,
"Simplified USB3300 Architecture" below.
6.1
ULPI Digital
The USB3300 uses the industry standard ULPI digital interface to facilitate communication between
the PHY and Link (device controller). The ULPI interface is designed to reduce the number of pins
required to connect a discrete USB PHY to an ASIC or digital controller. For example, a full UTMI+
Level 3 OTG interface requires 54 signals while a ULPI interface requires only 12 signals.
The ULPI interface is documented completely in the “UTMI+ Low Pin Interface (ULPI)
Specification” document (www.ulpi.org).
The following sections highlight the key operating modes
of the USB3300 digital interface.
Figure 6.1 Simplified USB3300 Architecture
ULPI Digital
OTG
Module
DATA[7:0]
Internal
Regulator &
POR
Bias
Gen.
CLKOUT
NXT
DIR
STP
VDD3.3
XTAL &
PLL
VBUS
ID
VDD3.3
DP
DM
USB3300
RBIAS
HS XCVR
FS/LS
XCVR
Resistors



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