User Guide

Application section includes the application processor ASIC with DDR/NAND combo memory as the core.

Stacked DDR/NAND application memory has 512Mbits of DDR memory and 512Mbits of flash memory. The

application processor uses 19.2MHz clock, which comes from the RAP divided by two from the 38.4 MHz system

clock.

Figure 83 Functional block diagram

The application processor is also called as an application ASIC because it is processing application SW and

handles the UI SW. It consists of OMAP3.3 and peripheral subsystems like display- and keyboard driver blocks.

Section Description

Application processor also called an application ASIC because it is

processing application SW and handles the UI SW.

It consists of OMAP3.3 and peripheral subsystems

like display and keyboard driver blocks.

OMAP3.3 consists of ARM926 (MPU subsystem), TMS320C55x

(DSP subsystem), DMA and OMAP3.3s internal

peripherals.

MPU subsystem based on an ARM926EJ. MPU is able to perform most

of the application operations on the chip.

System DMA component mainly used to help the MPU and DSP perform data

memory transfer-specific tasks, leaving more

available MIPS for both processors.

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