Public Version
PRCM Functional Description
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Table 3-25. Power Domain Modules (continued)
Power Domain
Modules
PER
UART[3, 4]
WDTIMER3
McBSP[2..4]
GPIO[2..6]
GPTIMER[2..9]
L4-Per interconnect
WKUP
GPIO1
GPTIMER1
WDTIMER2
L4-Wake-up interconnect
USBHOST
HS USB host subsystem
EMU
CWT
DAP-APB
ETB
ICEPICK
TRACEPORT
L4-EMU interconnect
SMARTREFLEX
SmartReflex1
SmartReflex2
EFUSE
eFuse farm
DPLL1
MPU DPLL
DPLL2
IVA2.2 DPLL
DPLL3
CORE DPLL
DPLL4
Peripherals DPLL
DPLL5
Peripherals DPLL2
3.5.2.1.3 Memory and Logic Power Management
Device power domains can have separate control for logic and memory. This depends on the power
domain implementation in the device (for details, see
, Power Domain Implementation).
Generally, separate switches allow separate management of the logic and memory power states in a
power domain.
Memory banks in the MPU (L2 cache), IVA2 (L1, L1 flat, L2, L2 flat), CORE (CORE memory banks 1 to
6), SGX, CAM, DSS, USBHOST, and EMU power domain memories have their own voltage and power
control, independent of the logic. However, the user must ensure that memory states are programmed
consistently with the logic state.
MPU L1 cache memory does not have an independent control and is supplied with the MPU logic.
CORE memory banks 3,4, 5, and 6 are associated to the domain power state and controlled with the
domain logic.
MPU and IVA2 memories are supplied by a common LDO (VDD4). CORE, SGX, CAM, DSS, USBHOST,
and EMU memories are supplied by another LDO (VDD5).
3.5.2.1.4 Retention Till Access (RTA) Memory Feature
Most high-density memories within the device support the RTA feature. It consists of putting automatically
part or entire memory array into retention when no access is made to the corresponding locations. This is
managed within the memory bank, by the hardware and is completely transparent to the user software. As
a consequence, RTA memories do not have any retention mode control signal coming from the PRCM.
284
Power, Reset, and Clock Management
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 ...