Offsets Downstream I/O or Memory, Translated Base

List of Registers

Table 41. Downstream I/O or Memory 1 and Upstream I/O or Memory 0 Translated Base Register

Offsets	Downstream I/O or Memory 1	Upstream I/O or Memory 0 Translated
Offsets	Translated Base	Base
	Translated Base	Base

Primary byte	9B:98h	A7:A4h

Secondary byte	9B:98h	A7:A4h

CSR byte	06F:06Ch	07B:078h

Bit	Name	R/W	Description

5:0	Reserved	R	Reserved. Returns 0 when read.

			Contains the translated base address for downstream or upstream
			transactions whose initiator bus addresses fall into either the
			Downstream I/O or Memory 1, or Upstream I/O or Memory 0 Base
			Address range.
			The number of bits that are used for the translated base is determined by
31:6	XLAT_BASE	R/W	the setup register corresponding to that base address and also matches
			the number of writable bits in the corresponding BAR.
			The remaining bits may be written but are ignored when performing
			address translation. When an I/O or memory transaction is initiated by the
			21555 on the target bus, the original base address is replaced with the
			value contained in this register.

136	21555 Non-Transparent PCI-to-PCI Bridge User Manual

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.

Intel 21555 user manual Offsets Downstream I/O or Memory, Translated Base, Xlatbase

Models: 21555

Offsets

Downstream I/O or Memory 1

Translated Base

Bit

XLAT_BASE

21555 specifications