List of Registers

Table 32. Configuration Space Address Register (Sheet 5 of 5)

Byte

 

Reset Value

 

Write

Read

Offset

Register Name

Preload

(Hex)

Access

Access

(Hex)

 

 

 

 

 

 

 

 

 

 

 

 

 

EC

CompactPCI Hot-Swap

06

Secondary

N

 

Capability Identifier and Next

 

 

 

 

 

 

 

 

 

 

Pointer Register, page 189

 

 

 

 

ED

Hot-Swap Cap ID

00

N

N

 

Hot-Swap Next Ptr

 

 

 

 

 

 

 

 

 

 

 

CompactPCI Hot-Swap Control

 

 

 

 

EE

Register, page 189

00x1000b

Y

N

 

Hot-Swap Control

 

 

 

 

 

 

 

 

 

 

FF:F0

Reserved

00000000

N

Y

 

 

 

 

 

 

16.3Control and Status Registers

The control and status registers are memory mapped in the Primary CSR and Memory 0 Base Address window and the Secondary CSR Base Address window. These registers are I/O mapped in the Primary CSR I/O BAse Address window and the Secondary CSR I/O Base Address window. Offsets are referenced from these base addresses.

Table 33 lists the CSR summary. 017:014

Table 33. CSR Address Map (Sheet 1 of 5)

Byte

 

 

 

 

Offset

Register Name

Reset Value

Write Access

Read Access

(Hex)

 

 

 

 

 

 

 

 

 

 

Downstream and Upstream Configuration

 

 

 

003:000

Address Registers, page 141

Indeterminate

Primary

Y

 

Downstream Configuration Address

 

 

 

 

 

 

 

 

 

Downstream Configuration Data and

 

 

 

007:004

Upstream Configuration Data Registers,

Indeterminate

Primary

Primary

page 142

 

 

 

 

 

Downstream Configuration Data

 

 

 

 

 

 

 

 

 

Downstream and Upstream Configuration

 

 

 

00B:008

Address Registers, page 141

Indeterminate

Secondary

Y

 

Upstream Configuration Address

 

 

 

 

 

 

 

 

 

Downstream Configuration Data and

 

 

 

00F:00C

Upstream Configuration Data Registers,

Indeterminate

Secondary

Secondary

page 142

 

 

 

 

 

Upstream Configuration Data

 

 

 

 

 

 

 

 

010

Configuration Own Bits Register, page 142

00

N

Primary Read-

0-to-set

 

Configuration Own Byte 0

 

 

 

 

 

 

 

 

 

Secondary

011

Configuration Own Byte 1

00

N

Read-0-to-set

 

 

 

 

 

 

 

 

 

013:012

Configuration CSR, page 143

0000

Y

Y

Configuration CSR

 

 

 

 

 

 

 

 

 

 

Downstream I/O Address and Upstream I/O

 

 

 

017:014

Address Registers, page 144

Indeterminate

Primary

Y

 

Downstream I/O Address

 

 

 

 

 

 

 

 

126

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

Page 126
Image 126
Intel 21555 Control and Status Registers, Configuration Space Address Register Sheet 5, CSR Address Map Sheet 1, Byte

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.