Texas Instruments OMAP5912 Reference Manual page 586

Power System Overview
Table 40. Power Domains With Associated Power Supply and Planes
68 Power Management
Power Domains
MPU DOMAIN MPU DOMAIN
DSP DOMAIN
RTC DOMAIN
Notes: 1) If the integrated USB transceivers are used, the spec for DVDD2 should be nominal
3.3V. If the integrated USB transceivers are not intented to be used, the spec for
DVV2 should be either nominal 3.3V or nominal 1.8V
Notes: 2) The SDRAM interface voltage includes 3.3V. You can power DVDD4 in the 3.0~3.6
power range. When using 3.3V power, CONF_VOLTAGE_SDRAM_R bit should be
set to 1 (2.75V) for better performance.
Notes: 3) Refer to the OMAP5912 Data Manual (SPRS231) for more information on nominal
voltage min/max ranges.
OMAP 5912 can be split into power planes and power domains:
-
A power plane is composed of components that are supplied by a
dedicated power rail. Components from two different power plans can be
interconnected (bus interface, peripheral interfaces, and so on.). This
interconnection creates leakage current between power planes.
-
A power domain is composed of one or several power planes.
Components from two different power domains can be interconnected
(bus interface, peripheral interfaces, and so on). This interconnection
Power Supply
CVDD (1.05 V−1.65 V) CVDD (1.05 V−1.65 V)
CVDD1 (1.05 V−1.65 V) CVDD1 (1.05 V−1.65 V)
CVDD2 (1.05 V−1.65 V) CVDD2 (1.05 V−1.65 V)
LDO.FILTER LDO.FILTER
CVDDa (1.6 V) CVDDa (1.6 V)
CVDDDLL (1.6 V)
DVDD1 (1.8 V−2.75 V)
1
DVDD2 (1.8 V, 3.3 V)
DVDD3 (1.8 V−3 V)
2 2
DVDD4 (1.8 V−2.75 V)
DVDD5 (1.8 V−2.75 V)
DVDD6 (1.8 V−2.75 V)
DVDD7 (1.8 V− 2.75 V) DVDD7 (1.8 V− 2.75 V)
DVDD (1.8 V−3 V) DVDD (1.8 V−3 V)
DVDD9 (1.8 V−2.75 V) DVDD9 (1.8 V−2.75 V)
DVDDRTC (1.8 V−2.75 V) DVDDRTC (1.8 V−2.75 V)
CVDD3 (1.05 V−1.65 V)
CVDDRTC (1.6 V)
Power Planes
Core: ASIC gates Core: ASIC gates
Core: Arm926EJS Core: Arm926EJS
Core: DPLL Core: DPLL
Core: Analog Core: Analog
Core: SDRAM interface Core: SDRAM interface
Display interface
USB interface
Miscellaneous interfaces
Peripheral: SDRAM interface
Peripheral: flash interface
MMC interface
Miscellaneous interfaces
Camera interface Camera interface
Miscellaneous interfaces Miscellaneous interfaces
Peripheral: RTC I/O Peripheral: RTC I/O
Core: DSP
Core: RTC
SPRU753A