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DM385 데이터시트(PDF) 132 Page - Texas Instruments |
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DM385 데이터시트(HTML) 132 Page - Texas Instruments |
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132 / 281 page ![]() DM385, DM388 SPRS821D – MARCH 2013 – REVISED DECEMBER 2013 www.ti.com 7.2.5 Dual Voltage I/Os The device supports dual voltages on some of its I/Os. These I/Os are partitioned into the following groups, and each group has its own dedicated supply pins: DVDD, DVDD_GPMC, DVDD_C, and DVDD_SD. The supply voltage for each group can be independently powered with either 1.8 V or 3.3 V. For the mapping between pins and power groups, see Section 3.3, Terminal Functions of the datasheet. In addition, the I/O voltage on the DDR interface is independently selectable between 1.35 V, 1.5 V or 1.8 V to support various DDR device types. 7.2.6 I/O Power-Down Modes On the device, there are power-down modes available for the following PHYs: • Video DACs • DDR • USB • HDMI • CSI2 • PCIE When a PHY controller is in a power domain that is to be turned "OFF", software must configure the corresponding PHY into power-down mode, prior to putting the power domain in the "OFF" state. 132 Power, Reset, Clocking, and Interrupts Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: DM385 DM388 |
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