參數(shù)資料
型號(hào)： MC94MX21DVKN3R2
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 350 MHz, MICROPROCESSOR, PBGA289
封裝： 14 X 14 MM, 1.41 MM HEIGHT, 0.65 MM PITCH, LEAD FREE, PLASTIC, BGA-289
文件頁(yè)數(shù)： 12/98頁(yè)
文件大小： 1326K
代理商： MC94MX21DVKN3R2
MC94MX21 Technical Data, Rev. 1.
5
2
Freescale Semiconductor
Introduction
For cost sensitive applications, the NAND Flash controller allows the use of low-cost NAND Flash
devices to be used as primary or secondary non-volatile storage. The on-chip error correction code (ECC)
and parity checking circuitry of the NAND Flash controller frees the CPU for other tasks. WLAN,
Bluetooth and expansion options are provided through PCMCIA/CF, USB, and MMC/SD host controllers.
The device is packaged in a 289-pin MAPBGA.
Figure 1. i.MX21 Functional Block Diagram
1.1
Conventions
This document uses the following conventions:
OVERBAR is used to indicate a signal that is active when pulled low: for example, RESET.
Logic level one
is a voltage that corresponds to Boolean true (1) state.
Logic level zero
is a voltage that corresponds to Boolean false (0) state.
To set a bit or bits means to establish logic level one.
To clear a bit or bits means to establish logic level zero.
A signal is an electronic construct whose state conveys or changes in state convey information.
Connectivity
ARM9 Platform
System Control
Enhanced Multimedia Accelerator
(eMMA)
Standard System I/O
Memory Interface
ARM926EJ-S
Internal Control
Clock Management
I2C
UART x 4
1-WIRE
IrDA
USB OTG/ 2 Hosts
SDRAMC
EIM/BMI
NFC
i.MX21
CSPI x 3
Human Interface
Audio Mux
SSI x 2
JTAG/Multi
ICE
System Boot
Timers x 3
WDOG
RTC
DMAC
GPIO
PWM
SLCD Controller
Keypad
D Cache
I Cache
MAX
MMU
Bus Control
Memory Control
Pre- and Post- Processing
Video Accelerator
Memory Expansion
MMC/SD x 2
PCMCIA/CF
LCD Controller
CSI
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
MC94MX21DVKN3
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