CBI/CGI Technical Reference

ISA/PCI Reference

 

 

PCI LOCAL BUS

The PCI Local Bus pin assignments shown below are for the PCI option slots on the

PIN ASSIGNMENTS

backplane.

 

The PCI Local Bus specifies both 5-volt and 3.3-volt signaling environments. The following bus pin assignments are for the 5-volt connector. The 3.3-volt connector bus pin assignments are the same with the following exceptions:

*The pins noted as +V (I/O) are +5 volts or +3.3 volts, depending on which connector is being used.

†Pins B12, B13, A12 and A13 are Gnd (ground) on the 5-volt connector, but are Connector Keys on the 3.3-volt connector.

††Pin B49 is Gnd (ground) on the 5-volt connector, but is M66EN on the 3.3- volt connector.

†††Pins B50, B51, A50 and A51 are Connectors Keys on the 5-volt connector, but are Gnd (ground) on the 3.3-volt connector.

I/O Pin

Signal Name

 

 

B1

-12V

B2

TCK

B3

Gnd

B4

TDO

B5

+5V

B6

+5V

B7

INTB#

B8

INTD#

B9

PRSNT1#

B10

Reserved

B11

PRSNT2#

B12

Gnd †

B13

Gnd †

B14

Reserved

B15

Gnd

B16

CLK

B17

Gnd

B18

REQ#

B19

+V (I/O) *

B20

AD31

B21

AD29

B22

Gnd

B23

AD27

B24

AD25

B25

+3.3V

B26

C/BE3#

B27

AD23

B28

Gnd

B29

AD21

B30

AD19

B31

+3.3V

B32

AD17

B33

C/BE2#

B34

Gnd

B35

IRDY#

 

 

I/O Pin

Signal Name

 

 

A1

TRST#

A2

+12V

A3

TMS

A4

TDI

A5

+5V

A6

INTA#

A7

INTC#

A8

+5V

A9

Reserved

A10

+V (I/O) *

A11

Reserved

A12

Gnd †

A13

Gnd †

A14

Reserved

A15

RST#

A16

+V (I/O) *

A17

GNT#

A18

Gnd

A19

Reserved

A20

AD30

A21

+3.3V

A22

AD28

A23

AD26

A24

Gnd

A25

AD24

A26

IDSEL

A27

+3.3V

A28

AD22

A29

AD20

A30

Gnd

A31

AD18

A32

AD16

A33

+3.3V

A34

FRAME#

A35

Gnd

 

 

32-bit connector start

Chassis Plans

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Intel S5721-xxx manual CBI/CGI Technical Reference, Backplane
Page 42 Page 44

S5721-xxx specifications

The Intel S5721-xxx is a high-performance processor designed for a variety of applications, particularly in data center environments and enterprise-level solutions. This processor is part of Intel's line of server-grade CPUs, which are engineered to deliver exceptional performance, efficiency, and scalability.

One of the standout features of the Intel S5721-xxx is its multi-core architecture, which allows for enhanced parallel processing capabilities. This is crucial for workloads that require simultaneous processing of multiple tasks, such as virtualization, cloud computing, and large-scale data analytics. With up to 20 physical cores and support for Intel Hyper-Threading technology, the S5721-xxx can handle up to 40 threads, significantly improving throughput and performance for demanding applications.

In terms of performance, the S5721-xxx offers impressive clock speeds that can reach up to 3.2 GHz, providing the necessary power for demanding tasks. Additionally, the processor supports Intel Turbo Boost Technology, which automatically increases the processor's frequency to provide extra performance when needed. This dynamic scaling ensures efficient resource utilization, making the processor an ideal choice for environments where workload requirements can fluctuate.

Another notable characteristic of the S5721-xxx is its advanced memory support. The processor is compatible with DDR4 memory, allowing for high bandwidth and low latency, which is essential for applications that require quick access to large datasets. Additionally, the S5721-xxx supports Intel Optane technology, which enhances memory performance and offers lower latency, providing a considerable advantage in data-intensive operations.

Intel's S5721-xxx also features enhanced security technologies. With Intel Software Guard Extensions (SGX), this processor provides hardware-based protection for applications and data, which is critical for enterprise applications dealing with sensitive information. Furthermore, it includes Intel Virtualization Technology, facilitating improved resource management and security in virtual environments.

Thermal management is also a focus for the S5721-xxx. It incorporates Intel's thermal velocity boost technology, which optimizes thermal performance and ensures that the processor can maintain high speeds without overheating under heavy loads.

In summary, the Intel S5721-xxx is characterized by its robust multi-core architecture, high clock speeds, advanced memory support, and security features. Its design caters specifically to the needs of modern data-driven enterprises and offers the scalability necessary to support emerging technologies and workloads. With its combination of performance, efficiency, and security, the Intel S5721-xxx is a formidable choice for organizations looking to enhance their computing capabilities.
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