Error Handling

12.3System Error (SERR#) Reporting

The 21555 has two system error pins. Signal p_serr_l reports system errors on the primary interface, and s_serr_l reports system errors on the secondary interface. For the 21555 to assert the SERR# signal for that interface, the SERR# Enable must be set in the Command Configuration register corresponding to that interface. In addition, each device-specific condition has a disable bit for each interface. When a disable bit for a particular condition is set, SERR# assertion is masked for that condition. SERR# may be asserted for any of the following conditions:

•Address parity error (disabled by the corresponding Parity Error Enable bit).

•Parity error reported on target bus only during a posted write transaction (disabled by the corresponding Parity Error Enable bit).

•Target abort detected during posted write transaction.

Note: The Master Abort Mode Bit in the Chip Control register must be set in order for SERR to assert on the following condition.

•Master abort detected during posted write transaction.

•Posted write discarded after 224 target retries received from target.

•Delayed write request discarded after 224 target retries received from target.

•Delayed read request discarded after 224 target retries received from target.

•Delayed transaction completion discarded after master timeout counter expired.

For the above conditions, SERR# is asserted on the interface corresponding to the location of the initiator of the transaction.

When the SERR# Forward Enable bit in the Chip Control 0 configuration register is set, the 21555 asserts p_serr_l when it detects s_serr_l asserted, including those cases where the 21555 has asserted s_serr_l.

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21555 specifications

The Intel 21555 is a prominent microprocessor developed by Intel, designed to cater to a variety of computing needs. This processor marks a significant step forward in Intel's lineup and underscores the company's commitment to advancing technology in personal computing, enterprise solutions, and beyond.

One of the standout features of the Intel 21555 is its advanced architecture. It utilizes a multi-core design, enabling improved performance through parallel processing. This architecture allows multiple applications to run seamlessly without a decline in speed. The cores are built on a cutting-edge manufacturing process that enhances energy efficiency while maintaining high clock speeds.

The Intel 21555 supports a wide range of technologies, including Intel Turbo Boost, which enables dynamic adjustments to the processor’s performance based on workload demands. This feature allows the processor to accelerate its speed during intensive tasks, providing users with a responsive experience when it matters the most.

Another key characteristic of the Intel 21555 is its support for integrated graphics. With Intel UHD Graphics technology, users can enjoy enhanced visuals for everyday tasks such as video playback, web browsing, and light gaming. This eliminates the need for a separate graphics card for many users, particularly in home office or light gaming scenarios.

Security is a significant focus in the design of the Intel 21555. It includes built-in hardware-based security features like Intel Trusted Execution Technology and Secure Boot. These features help protect against various types of threats, ensuring that user data remains secure from malicious attacks.

The Intel 21555 is also optimized for use with Intel's platform technologies, including Intel Optane memory and Intel Rapid Storage Technology. These technologies work together to deliver faster boot times and improved system responsiveness, making computing more efficient for users.

Furthermore, the Intel 21555 is designed to support virtualization technologies, allowing multiple operating systems to run concurrently without compromising performance. This is particularly useful for developers and businesses that rely on virtualization for testing and development environments.

In summary, the Intel 21555 is a powerful and versatile processor that reflects Intel's ongoing innovation in the computing space. With its multi-core architecture, enhanced graphics capabilities, strong security features, and advanced technologies, it stands out as an excellent choice for a wide range of applications, serving both casual users and professionals alike.
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