EP9312-CB

Microprocessors Overview

The EP9312-CB is a Universal Platform System-on-chip Processor based on the ARM920T core, manufactured by Cirrus Logic Inc. It features a 200-MHz processor speed with a 100-MHz system bus and integrated MaverickCrunch™ Math Engine. The device includes a 352-pin PBGA package, 16-kbyte instruction and data caches, and an MMU supporting Linux and Windows CE. Key peripherals include a 1/10/100 Mbps Ethernet MAC, three-port USB 2.0 Full-speed Host (OHCI), IDE interface, LCD/Raster interface, touchscreen ADC, and multiple serial interfaces such as SPI, I2S, AC'97, and UARTs.

Microprocessors Feature Summary

• Integrated ARM920T processor core with MaverickCrunch™ math engine for accelerated digital audio processing
• Comprehensive peripheral set including Ethernet MAC, triple-port USB 2.0 host, and IDE interface
• Hardware security via MaverickKey™ unique IDs for content protection and authentication
• Support for various display types through programmable Raster/LCD interface and touchscreen controller

Microprocessors Applications

• Thin client computers for business and home environments
• Industrial computers and specialized terminals
• Point of sale terminals and test and measurement equipment
• Internet radio and internet access devices

Microprocessors Procurement Notes

Verify the specific suffix 'CB' against official documentation to confirm temperature range or packaging variations, as datasheets primarily reference the base EP9312 family. Confirm RoHS compliance status and check for any Product Change Notices (PCN) regarding manufacturing consolidation or label changes. Ensure compatibility with required operating systems like Linux or Windows CE given the MMU support.

Microprocessors Selection Notes

Select this component for applications requiring a low-power, single-chip solution with extensive connectivity options. The inclusion of dedicated audio acceleration and hardware security features makes it suitable for secure media appliances. Evaluate memory requirements against the supported SDRAM and SRAM interfaces. Consider the 352-pin BGA package constraints during PCB layout and thermal management planning.

Microprocessors Part Context

The EP9312 belongs to the Cirrus Logic EP9 series of universal platform processors. It is designed as a high-performance, low-power RISC-based computer. The device integrates a wide array of peripherals to reduce system component count, targeting embedded markets that require robust connectivity and multimedia capabilities in a compact form factor.

Microprocessors Replacement Considerations

Check for discontinued status notifications from Cirrus Logic. Verify if newer ARM9-based SoCs from Cirrus or other manufacturers offer pin-compatible or software-compatible alternatives. Review application notes for migration guides if upgrading within the same product family.

Microprocessors FAQ

What is the function of the MaverickCrunch™ Math Engine?

It is a mixed-mode coprocessor designed to accelerate floating point, integer, and signal processing instructions, specifically optimized for digital music compression and decompression algorithms.

How does the EP9312 handle hardware security?

It utilizes MaverickKey™ unique hardware-programmed IDs, including a 32-bit ID and a 128-bit random ID, to provide secure authentication for web content and commerce.

What operating systems are supported by the MMU?

The Memory Management Unit (MMU) supports Linux and Microsoft Windows CE, along with other operating systems requiring similar memory management features.