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MC9328MX21VK Datasheet(PDF) 5 Page - Motorola, Inc |
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MC9328MX21VK Datasheet(HTML) 5 Page - Motorola, Inc |
5 / 106 page Signal Descriptions MC9328MX21 Product Preview, Rev. 1.1 Freescale Semiconductor 5 • Wireless Connectivity — Fast Infra-Red Interface (Fast IR) • Wired Connectivity — USB On-The-Go (USBOTG) Controller — Four Universal Asynchronous Receiver/Transmitters (UART1, UART2, UART3, and UART4) — Two Configurable Serial Peripheral Interfaces (CSPI1 and CSPI2) 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 This section identifies and describes the i.MX21 signals and their pin assignments. The i.MX21 signals are listed in Table 2. Table 2. i.MX21 Signal Descriptions Signal Name Function/Notes External Bus/Chip Select (EIM) A [25:0] Address bus signals D [31:0] Data bus signals EB0 MSB Byte Strobe—Active low external enable byte signal that controls D [31:24], shared with SDRAM DQM0. EB1 Byte Strobe—Active low external enable byte signal that controls D [23:16], shared with SDRAM DQM1. |
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