List of Registers

Table 33. CSR Address Map (Sheet 4 of 5)

Byte

 

 

 

 

Offset

Register Name

Reset Value

Write Access

Read Access

(Hex)

 

 

 

 

 

 

 

 

 

 

Upstream Page Boundary IRQ Mask 0

 

 

 

093:090

Register, page 172

FFFFFFFF

Y

Y

 

Upstream Page Boundary IRQ Mask 0

 

 

 

 

 

 

 

 

 

Upstream Page Boundary IRQ Mask 1

 

 

 

097:094

Register, page 172

FFFFFFFF

Y

Y

 

Upstream Page Boundary IRQ Mask 1

 

 

 

 

 

 

 

 

099:098

Primary Clear IRQ and Secondary Clear

0000

W1TC

Y

 

IRQ Registers, page 173

 

 

 

 

 

 

 

09B:09A

Primary Clear IRQ

0000

W1TC

Y

 

 

Secondary Clear IRQ

 

 

 

 

 

 

 

 

09D:09C

Primary Set IRQ and Secondary Set IRQ

0000

W1TS

Y

 

Registers, page 173

 

 

 

 

 

 

 

09F:09E

Primary Set IRQ

0000

W1TS

Y

 

 

Secondary Set IRQ

 

 

 

 

 

 

 

 

0A1:0A0

Primary Clear IRQ Mask and Secondary

FFFF

W1TC

Y

 

Clear IRQ Mask Registers, page 174

 

 

 

 

 

 

 

0A3:0A2

Primary Clear IRQ Mask

FFFF

W1TC

Y

 

 

Secondary Clear IRQ Mask

 

 

 

 

 

 

 

 

0A5:0A4

Primary Set IRQ Mask and Secondary Set

FFFF

W1TS

Y

 

IRQ Mask Registers, page 174

 

 

 

 

 

 

 

0A7:0A6

Primary Set IRQ Mask

FFFF

W1TS

Y

 

 

Secondary Set IRQ Mask

 

 

 

 

 

 

 

 

 

Scratchpad 0 Through Scratchpad 7

 

 

 

 

Registers, page 174

 

 

 

0AB:0A8

Scatchpad 0

 

 

 

0AF:0AC

Scatchpad 1

 

 

 

0B3:0B0

Scatchpad 2

Indeterminate

Y

Y

0B7:0B4

Scatchpad 3

 

 

 

0BB:0B8

Scatchpad 4

 

 

 

0BF:0BC

Scatchpad 5

 

 

 

0C3:0C0

Scatchpad 6

 

 

 

0C7:0C4

Scatchpad 7

 

 

 

 

 

 

 

 

0C9:0C8

ROM Setup Register, page 177

7E00

Y

Y

ROM Setup

 

 

 

 

 

 

 

 

 

0CA

ROM Data Register, page 177ROM Data

Indeterminate

Y

Y

 

 

 

 

 

0CB

Reserved

00

N

Y

 

 

 

 

 

0CE:0CC

ROM Address Register, page 178

000400

Y

Y

ROM Address

 

 

 

 

 

 

 

 

 

0CF

ROM Control Register, page 178

0000

Y

Y

ROM Control

 

 

 

 

 

 

 

 

 

0D2:0D0

Generic Own Bits Register, page

TBD

TBD

TBD

164Generic Own Bits

 

 

 

 

 

 

 

 

 

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

129

Page 129
Image 129
Intel 21555 user manual CSR Address Map Sheet 4

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.