usb-011
Device
USB ULPI
transceiver
DATA5
DATA7
DATA6
DATA2
DATA4
DATA3
D+
D-
x is the USB port number (1 or 2)
hsusbx_nxt
hsusbx_dir
hsusbx_stp
hsusbx_data0
hsusbx_data1
hsusbx_data2
hsusbx_data4
hsusbx_data3
hsusbx_data5
hsusbx_data6
hsusbx_clk
hsusbx_data7
NXT
DATA1
DATA0
CLK
STP
DIR
Public Version
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High-Speed USB Host Subsystem
The 12-pin ULPI interface uses an 8-bit data bus with data synchronous to the rising edge of the PHY
(transceiver) clock (SDR mode), whereas the 8-pin ULPI uses a 4-bit data bus with data generated on
both the rising and falling clock edges (DDR mode).
22.2.2.3.1 Transceiver Interface Configurations
The high-speed USB host subsystem supports only the 12-pin/8-bit data SDR version of the ULPI
interface mode.
NOTE:
In the device, only the ULPI ports 1 and 2 of the high-speed USB host controller are
mapped and can be connected directly to external transceivers.
shows USB ports using the 12-pin/8-bit data SDR version of the ULPI interface mode.
Figure 22-13. ULPI Interfaces - 12-Pin/8-Bit Data SDR Version
22.2.2.3.2 TLL Configurations
The high-speed USB host controller is coupled with the USBTLL module to compose the ULPI TLL
interface modes.
The high-speed USB host subsystem supports the 12-pin/8-bit data SDR and 8-pin/4-bit data DDR
versions of the ULPI TLL interface mode.
shows USB ports using the 12-pin/8-bit data SDR version of the ULPI TLL interface mode.
3241
SWPU177N – December 2009 – Revised November 2010
High-Speed USB Host Subsystem and High-Speed USB OTG Controller
Copyright © 2009–2010, Texas Instruments Incorporated