mc94mx21 Freescale Semiconductor, Inc, mc94mx21 Datasheet - Page 4

• Manufacturer Part Number: mc94mx21
• Description: 333 And 350 Mhz
• Manufacturer: Freescale Semiconductor, Inc

Signal Descriptions
1.5
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.
2
Table 2
Assignment and Package
manual.
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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 (I
— Two Synchronous Serial Interfaces (SSI) with Inter-IC Sound (I
— 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
Signal Descriptions
identifies and describes the i.MX21 signals. Pin assignment is provided in
Features
2
C) Bus Module
Information” and in the “Signal Multiplexing Scheme” table within the reference
MC94MX21 Technical Data, Rev. 1.4
2
S)
Section 4, “Pin
Freescale Semiconductor