參數(shù)資料
型號: 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
文件頁數(shù): 34/98頁
文件大?。?/td> 1326K
代理商: MC94MX21DVKN3R2
MC94MX21 Technical Data, Rev. 1.
5
4
Freescale Semiconductor
Signal Descriptions
1.5
Features
The i.MX21 boasts a robust array of features that can support a wide variety of applications. Below is a
brief description of i.MX21 features.
ARM926EJ-S Core Complex
enhanced Multimedia Accelerator (eMMA)
Display and Video Modules
— LCD Controller (LCDC)
— Smart LCD Controller (SLCDC)
— CMOS Sensor Interface (CSI)
Bus Master Interface (BMI)
Wireless Connectivity
— Fast Infra-Red Interface (FIRI)
Wired Connectivity
— USB On-The-Go (USBOTG) Controller
— Four Universal Asynchronous Receiver/Transmitters (UARTx)
— Three Configurable Serial Peripheral Interfaces (CSPIx) for High Speed Data Transfer
— Inter-IC (I2C) Bus Module
— Two Synchronous Serial Interfaces (SSI) with Inter-IC Sound (I2S)
— Digital Audio Mux
— One-Wire Controller
— Keypad Interface
Memory Expansion and I/O Card Support
— Two Multimedia Card and Secure Digital (MMC/SD) Host Controller Modules
Memory Interface
— External Interface Module (EIM)
— SDRAM Controller (SDRAMC)
— NAND Flash Controller (NFC)
— PCMCIA/CF Interface
Standard System Resources
— Clock Generation Module (CGM) and Power Control Module
— Three General-Purpose 32-Bit Counters/Timers
— Watchdog Timer
— Real-Time Clock/Sampling Timer (RTC)
— Pulse-Width Modulator (PWM) Module
— Direct Memory Access Controller (DMAC)
— General-Purpose I/O (GPIO) Ports
— Debug Capability
2
Signal Descriptions
Table 2 identifies and describes the i.MX21 signals. Pin assignment is provided in Section 4, “Pin
Assignment and Package Information” and in the “Signal Multiplexing Scheme” table within the reference
manual.
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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