Overview of i.MX27 Multimedia Applications Processor, its key modules and applications

3. Key Features Performance • CPU complex: 400 MHz at 1.45 V, 266 MHz at 1.2 V • System: 133 MHz CPU Complex • ARM926EJ-S 400 MHz core • 16 KB L1 I-Cache and D-Cache • 16-channel DMA • ETM real-time debug • Smart Speed switch Multimedia • MPEG-4 H.263/H.264 D1 HW codec • Pre and post processing • High-speed CMOS sensor interface Technology • 90 nm CMOS • Package: 404 balls, 0.65 mm pitch MAPBGA, 17 mm x 17 mm package

4. Key Features cont’d External Memory Interface (EMI) • SDRAM 16/32-bit, 133 MHz • DDR 16/32-bit, 266 MHz • NAND flash 8/16-bit • PSRAM support Connectivity • 10 and 100 Mbps Ethernet/IEEE® 802.3MAC • USB OTG high speed, host x 2 • 3 x MMC/SD, Memory Stick-Pro™ • PCMCIA/CF • ATA-6 (HDD) interface • Audio MUX • IrDA, keypad, 1-wire • Configurable SPI x 3, SSI/I2S x 2, UART x 6 Advanced Power Management • Dynamic process temperature compensation (DPTC) • Active well bias Security Control • Crypto accelerator • Electronically blown fuse box • High-assurance boot • Security controller with encrypted RAM storage • Real-time OS/SW integrity checker

7. Block Diagram

8. i.MX27 Connectivity

10. ARM926EJ-S Interrupt Controller (AITC) The AITC performs the following functions: • Supports up to 64 interrupt sources • Supports fast and normal interrupts • Selects normal or fast interrupt request for any interrupt source • Indicates pending interrupt sources via a register for normal and fast interrupts • Indicates highest priority interrupt number via register. (Can be used as a table index.) • Independently can enable or disable any interrupt source • Provides a mechanism for software to schedule an interrupt • Supports up to 16 software controlled priority levels for normal interrupts and priority masking • Can single-bit disable all normal interrupts and all fast interrupts. (Used in enabling of secure operations.)

21. Example 2 - IP Camera