10.1

			Contents
	9.2	SROMSROM Preload Operation	91
	9.3	SROM Configuration Data Preload Format	92
	9.4	SROM Operation by CSR Access	92
10	Arbitration		97
	10.1	Primary PCI Bus Arbitration Signals	97
	10.2	Secondary PCI Bus Arbitration Signals	97
	10.3	Primary PCI Bus Arbitration	98
	10.4	Secondary PCI Bus Arbitration	98
		10.4.1 Secondary Bus Arbitration Using the Internal Arbiter	98
		10.4.2 Secondary Bus Arbitration Using an External Arbiter	100
11	Interrupt and Scratchpad Registers		101
	11.1	Primary and Secondary PCI Bus Interrupt Signals	101
	11.2	Interrupt Support	101
	11.3	Doorbell Interrupts	103
	11.4	Scratchpad Registers	103
12	Error Handling		105
	12.1	Error Signals	105
		12.1.1 Primary PCI Bus Error Signals	105
		12.1.2 Secondary PCI Bus Error Signals	106
	12.2	Parity Errors	107
	12.3	System Error (SERR#) Reporting	110
13	JTAG Test Port		111
	13.1	JTAG Signals	111
	13.2	Test Access Port Controller	112
		13.2.1 Initialization	112
14	I2O Support		113
	14.1	Inbound Message Passing	113
	14.2	Outbound Message Passing	115
	14.3	Notes	116
15	VPD Support		119
	15.1	Reading VPD Information	119
	15.2	Writing VPD Information	120
16	List of Registers		121
	16.1	Register Summary	121
	16.2	Configuration Registers	122
	16.3	Control and Status Registers	126
	16.4	Address Decoding	130
		16.4.1 Primary and Secondary Address	130
		16.4.2 Configuration Transaction Generation Registers	140
	16.5	PCI Registers	147
		16.5.1 Configuration Registers	147
		16.5.2 Primary and Secondary Command Registers	149
		16.5.3 Device-Specific Control and Status Registers	156
	16.6	I2O Registers	165

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 10.1

Models: 21555

10.4

21555 specifications