MC9328MX21 Datasheet, PDF (2/106 Pages) Motorola, Inc – i.MX family of microprocessors

Introduction
multimedia experience. In addition, the i.MX21 provides optional hardware enabled security features
including high assurance boot mode, unique processor IDs, secret key support, secure RAM, and a security
monitor. These optional features enable secure e-commerce, digital rights management (DRM),
information encryption, and secure software downloads.
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 i.MX21 is packaged in a 289-pin MAPBGA.
i.MX21
Figure 1. i.MX21 Functional Block Diagram
MC9328MX21 Product Preview, Rev. 1.1
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Freescale Semiconductor