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High-Speed USB Host Subsystem
Bits
Field Name
Description
Type
Reset
31:7
RESERVED
Reserved
R
0x0000000
6
USB_90D_DDR_EN
Software enable/disable of the 90-degree phase shift
RW
0x1
scheme on output DDR data, when implemented.
Read-only, always-0 when HDL generic
ULPI_90DEG4DDR = 0.
0x0: ULPI DDR output DATA aligned with CLK
0x1: ULPI DDR output DATA delayed by 90 degree wrt
CLK
5
USB_180D_SDR_EN
Software enable/disable of the 180-degree phase shift
RW
0x1
scheme on output SDR data, when implemented.
Read-only, always-0 when HDL generic
ULPI_180DEG4SDR = 0
0x0: ULPI SDR output DATA aligned with CLK
0x1: ULPI SDR output DATA delayed by 180 degree wrt
CLK
4:2
USB_DIVRATIO
(Log2 of) division ratio from functional clock to USB
RW
0x0
(UTMI/ULPI) clock
0x0: Div ratio is 2**0 = 1 : Bypass
0x1: Div ratio is 2**1 = 2
0x2: Div ratio is 2**2 = 4
0x3: Div ratio is 2**3 = 8
0x4: Div ratio is 2**4 = 16
0x5: Div ratio is 2**5 = 32
0x6: Div ratio is 2**6 = 64
0x7: Div ratio is 2**7 = 128
1
FCLK_REQ
Functional clock request, ORed from all channels
R
0x0
depending on their respective USB bus state.
Combined with the Fclk_is_on status to generate
fclk_start/end IRQs.
0x0: Func clock input is not requested by TLL
0x1: Func clock input is requested by TLL
0
FCLK_IS_ON
Status of the functional clock input, provided by the
RW
0x0
system to the TLL module. The TLL module will only use
that clock if the current status indicated that it is ready.
Combined with the Fclk_request to generate
fclk_start/end IRQs.
0x0: Functional clock input is not guaranteed ON (can
actually be ON, OFF, or unstable)
0x1: Functional clock input is guaranteed ON and stable
Table 22-71. Register Call Summary for Register TLL_SHARED_CONF
High-Speed USB Host Subsystem
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•
High-Speed USB Host Subsystem Register Summary
•
High-Speed USB Host Subsystem Register Description
:
3293
SWPU177N – December 2009 – Revised November 2010
High-Speed USB Host Subsystem and High-Speed USB OTG Controller
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 ...