Allwinner A20 - Page 809

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 809 / 812
D
DES
Data Encryption Standard
A previously predominant algorithm for the encryption of
electronic data
DEU
Detail Enhancement Unit
A unit used for display engine frontend data post
processing
DLL
Delay-Locked Loop
A digital circuit similar to a phase-locked loop (PLL), with
the main difference being the absence of an internal
voltage-controlled oscillator, replaced by a delay line
DRC
Dynamic Range Compression
It reduces the volume of loud sounds or amplifies quiet
sounds by narrowing or "compressing" an audio signal's
dynamic range.
DVFS
Dynamic Voltage and
Frequency Scaling
Dynamic voltage scaling is a power management
technique where the voltage used in a component is
increased or decreased, depending on circumstances.
Dynamic frequency scaling is a technique whereby the
frequency of a microprocessor can be automatically
adjusted on the fly so that the power consumption or heat
generated by the chip can be reduced. These two are often
used together to save power in mobile devices.
E
EHCI
Enhanced Host Controller
Interface
The register-level interface for a Host Controller for the
USB Revision 2.0.
eMMC
Embedded Multi-Media Card
An architecture consisting of an embedded storage solution
with MMC interface, flash memory and controller, all in a
small BGA package
F