Applications Processors
i.MX21 Processor
Overview
As the newest member of Freescale鈥檚 i.MX
family of applications processors, the i.MX21 is
your key to robust multimedia applications, with
higher levels of video and graphics capabilities,
plug-and-play connectivity and added power
management features than ever before offered
by this family.
Based on ARM
廬
core technology and designed
for use in smartphones, wireless PDAs, mobile
entertainment and many other mobile wireless
applications, Freescale鈥檚 i.MXL, i.MX1, and now,
the i.MX21 are engineered to offer Smart
Speed鈥攍ow power consumption with MHz
performance to spare, and a high degree of
integration to reduce your design time
significantly. For example, the i.MX21 offers
CIF 30 fps video encode and decode, sending
an e-mail message while playing an MP3 or
videoconferencing at 15 fps with a 35 percent
to 65 percent reduction in power consumption.*
The i.MX21 multimedia applications processor
provides an exceptional video experience via
special video decode/encode features and the
ultimate 2-D/3-D experience, thanks to a bus
master interface (BMI) to external graphics
chips. USB On-The-Go (USB-OTG) offers
plug-and-play connectivity. Additionally, i.MX21
provides minimized battery drain, thanks to
smart power management features.
The i.MX Family supports a broad
range of platforms such as those based
on the Microsoft
廬
Windows
廬
CE,
Palm OS
廬
, Symbian OS鈩?and Linux
廬
operating systems.
The i.MX family of applications processors
is part of Freescale鈥檚 groundbreaking
i.250 and i.300 Innovative Convergence鈩?/div>
platforms: Silicon-to-software solutions to
help designers get to market fast with
2.5G and 3G wireless products.
Freescale already offers total smartphone
reference platforms with the i.MX1 and
i.MXL, which leverages its proven
experience in wireless mobile devices and
helps shorten time-to-market for the next
generation of mobile devices.
The i.MX21 helps you harness the power
of wireless, mobile multimedia and the
Internet as never before.
Expansion
2 x MMC/SD
PCMCIA/CF
Connectivity
Internal
2 x CSPI
2 x SSI
IC
Standard System I/O
Audio Mux
CPU Complex
External
4 x UARTs
USB OTG/Host
1-Wire
IrDA
I-Cache
Internal Control
ARM926鈩?CPU
Smart Speed Switch (MAX)
2
i.MX21 APPLICATIONS PROCESSOR BLOCK DIAGRAM
System Control
JTAG/Multi-ICE鈩?/div>
Bootstrap
Clock Management
3 x Timers
PWM
WD Timer
D-Cache
Bus Control
MMU
RTC
Memory Control
GPIO
Memory Interface
SDRAMC
EIM/BMI
NANDF Controller
Enhanced
Multimedia Accelerator
(eMMA)
Pre- and Post-
Processing
Video Accelerator
eDMA
Human Interface
SLCD Controller
Keypad
Multimedia Interface
Camera Interface
*Improvement over i.MX1
1
2
