Device
High-Speed
peripheral controller
with ULPI interface
Parallel
TLL
HS/FS/LS
Serial TLL
FS/LS-only
(also serial
PHY i/f)
UTMI
UTMI
ULPI
Connection alternatives on serial port
A
C
2/3/4/6pin
TLL/Phy if
D
Full-Speed/
Low-Speed
serial PHY
(transceiver)
Full-Speed/Low-Speed
peripheral controller
with serial interface
U
S
B
c
o
n
n
e
c
to
r
D+
D-
test
(6p)
ULPI*
3/6p
ULPI
usb-030
System: (SW drivers, buf
fers,apps)
High-Speed USB host controller
6 pin
6 pin
6 pin
USBTLL: channel (detail)
T
oplevel muiltiplexing
Splitter (only 1 active port)
Public Version
High-Speed USB Host Subsystem
www.ti.com
A USB port is a set of I/O signals that carry the data and control information from/to a USB line. Several
port formats exist, with different capabilities. A channel has three ports. If the channel is active, two ports
are active at a time, depending on the channel configuration. The mode remains static throughout USB
operation.
summarizes the ports features.
22.2.4.2.2 Channel Architecture
shows the architecture of a single channel (of three) of the USBTLL module, and its
integration in a USB system. The ports are indicated by the circled letters (A, C, and D). See the following
descriptions:
•
Full arrows represent parallel, synchronous, high-speed-capable interfaces.
•
Line arrows represent serial, combinatorial, full-speed/low-speed-only interfaces.
•
Arrows always point toward the PHY layer (actual transceiver or TLL, in yellow), away from the link
controller.
•
The arrow marked ULPI* represents the entire ULPI protocol (synchronous or not) except the 3-/6-pin
serial TLL modes which are reoriented toward the serial TLL block.
•
The USBTLL module cannot interface with a ULPI transceiver. This functionality is provided by the
high-speed USB host controller.
•
Top-level multiplexing is shown only for information. It is static and does not add functionality. The
figure shows ULPI and serial ports implemented on different I/O pads for clarity, but a real
implementation would typically reuse the same pads, because the interfaces cannot be active
simultaneously
Figure 22-32. USBTLL Channel
summarizes the properties of each port.
Table 22-45. USBTLL Channel USB Ports
USBTLL
Port Description
Connect to
Connect to
Serial (Full-Speed/
Parallel (High-Speed/
Port
Controller
Transceiver
Low-Speed only)
Full-Speed/Low-Speed)
A
PHY-side UTMI+
UTMI+ (L3)
No
6-pin
60-MHz UTMI
C
PHY-side ULPI
ULPI TLL
No
6-pin
60-MHz UTMI
D
Multimode Serial
6-/4-/3-/2-pin TLL
6-/4-/3-/2-pin
6-/4-/3-/2-pin TLL
No
3274
High-Speed USB Host Subsystem and High-Speed USB OTG Controller
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated
Содержание OMAP36 Series
Страница 174: ...174 List of Tables SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 692: ...692 MPU Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1084: ...1084 IVA2 2 Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1990: ...1990 2D 3D Graphics Accelerator SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2334: ...2334 Memory Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2700: ...2700 Memory Management Units SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2868: ...2868 HDQ 1 Wire SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2974: ...2974 UART IrDA CIR SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3054: ...3054 Multichannel SPI SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3462: ...3462 MMC SD SDIO Card Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3508: ...3508 General Purpose Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3584: ...3584 Initialization SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3648: ...3648 Debug and Emulation SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...