Intel IQ31244 user manual General-Purpose I/O Unit, I2C Bus Units, Gpio Signal Definitions

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Intel® IQ31244 Customer Reference Board

3.2General-Purpose I/O Unit

The Intel® 80321 I/O Processor has eight general-purpose I/O GPIO[7:0] pins to control or monitor external devices in the I/O subsystem:

•The GPIO[0] and GPIO[1] signals are for CompactFlash* status.

•The GPIO[2] signal can be set to sound the buzzer. The buzzer can be disabled by adding a jumper onto Z14.

•The Flash ROM signal VPEN is assigned to GPIO[4] to allow software connection for code/data protection.

•The Flash ROM signal STS is assigned to GPIO[5] to allow interrupt input from the Flash ROM.

•The GPIO[6] and GPIO[7] signals are for the I2C bus.

Table 9. GPIO Signal Definitions

GPIO

 

Signal

 

 

 

7

Port 0

SCL

 

 

 

6

Port 0

SDA

 

 

 

5

Port 1

SCL/Flash_VPEN

 

 

 

4

Port 1

SDA/Flash_STS

 

 

3

Watchdog Timer

 

 

2

Buzzer

 

 

1

Compact Flash Wait

 

 

0

Compact Flash Ready/Busy

 

 

 

3.3I2C Bus Units

The IQ31244 has two Inter-Integrated Circuit (I2C) bus units. The first I2C bus interfaces the Intel® 80321 I/O Processor with the other I2C peripherals and microcontrollers for system management functions. Both buses allow the processor to serve as a master and slave device residing on the I2C bus. The first I2C has four components attached to the processor: the SDRAM EEPROM, the two temperature sensors, and the reset supervisor (with I2C addresses as shown in Table 10). The second I2C bus interface is through J15, a 4-pin header with pin 1 as SDA and pin 2 as SCL.

Table 10.

I2C Device Addresses

 

 

 

 

Designator

Device

Function

Address

 

 

 

 

 

 

 

J8

DDR SDRAM

Memory configuration

1010

0000

 

EEPROM DIMM

 

 

 

 

 

 

 

 

 

 

 

U35

LM75

Temperature sensor

1001 000x

 

 

 

 

 

 

U8

LM75

Temperature sensor

1001 001x

 

 

 

 

 

 

 

U7

ST-M41ST85W

Reset supervisor

1101

000x

 

 

 

 

 

 

User’s Manual

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Contents User’s Manual Intel IQ31244 Customer Reference BoardUser’s Manual Contents Tables FiguresDate Revision Description Revision History001 Initial release This page Intentionally Left Blank Introduction 415 Features and Descriptions FeaturesFeature Description Environmental Specifications Electrical SpecificationsEnvironmental Specifications Intel IQ31244 Customer Reference Board Power RequirementsPhysical Characteristics Physical CharacteristicsCharacteristic Description Component Layout Diagram not to scale Physical ConfigurationDocuments and Manufacturers Reference InformationDocument Manufacturer Primary PCI Bus PCI-X InterfaceRotation Scheme of the PAL Arbitration Circuit PAL Arbitration CircuitPriority Description Intel 80321 I/O Processor Intel 80321 I/O Processor Block DiagramIntel 31154 133 MHz PCI Bridge Gpio Pin Assignments SignalInterrupts InterruptConnections Intel80321 I/O Processor2C Device Addresses Gpio Signal DefinitionsGeneral-Purpose I/O Unit I2C Bus UnitsSdram Eeprom Temperature Sensors Reset SupervisorType Size Class Total Memory Size Supported Sdram ConfigurationsGigabit Ethernet Port Assignment Pin SymbolGigabit Ethernet Interface Intel 82546EB Dual-Port Gigabit Ethernet ControllerPin Sata InterfaceSata Port Assignment Sata Port Pin AssignmentSata Jtag Emulator Pin Assignment Pin SignalSata Jtag Interface Intel 31244 PCI-X to Serial ATA ControllerSata LED Header Activity LEDsFlash ROM Peripheral Bus Interface UnitCompactFlash Console Serial Port Rotary SwitchConsole Serial Port Connector Read-Only Rotary SwitchLEDs Signal PinJtag Emulator Support Hex DisplayATX Power Connector J1 ATX Power ConnectorJumpers Configure DescriptionJumper Options

IQ31244 specifications

The Intel IQ31244 represents a notable innovation in the realm of embedded processing solutions, tailored to meet the demands of contemporary applications in various industries. This processor, part of Intel's robust lineup, is engineered with a focus on delivering performance, efficiency, and reliability.

At the core of the IQ31244 lies a powerful multi-core architecture, which enables simultaneous processing tasks. This architecture is designed to optimize workload distribution, thereby enhancing overall system performance. With multiple execution cores, the IQ31244 is capable of handling demanding applications such as industrial automation, communications, and advanced embedded systems.

One of the standout features of the Intel IQ31244 is its support for Intel’s advanced security technologies. Hardware-based security measures are integrated into the processor, providing robust protection against potential vulnerabilities. This is particularly crucial in environments where data integrity and system security are paramount.

The IQ31244 also boasts a high level of energy efficiency, making it suitable for applications where power consumption is a critical concern. Intel has implemented various power management techniques in this processor, allowing it to dynamically adjust performance states based on workload demands. This adaptive capability ensures that performance is maximized while minimizing energy consumption, which is ideal for battery-operated or energy-sensitive devices.

Additionally, the Intel IQ31244 is equipped with advanced connectivity options, facilitating seamless integration into modern IoT ecosystems. With support for multiple communication protocols, including Ethernet, USB, and serial interfaces, this processor can connect to a diverse range of peripherals and network systems, enhancing its versatility for various applications.

The processor also incorporates Intel's latest advancements in graphic processing capabilities. With an integrated graphics engine, it offers improved visual performance for applications that require rich graphical interfaces, making it a suitable choice for embedded systems displaying complex data visualizations.

In summary, the Intel IQ31244 stands out as a high-performance, energy-efficient solution designed for a wide array of embedded applications. Its multi-core architecture, robust security features, advanced connectivity options, and integrated graphics capabilities make it a formidable choice for industries such as automation, telecommunications, and IoT, meeting the evolving needs of modern technology.
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