Intel IQ80960RM, RN manual Battery Backup, Loss of Fan Detect, Interrupt and Idsel Routing

Page 25

Hardware Reference

3.5.2Interrupt and IDSEL Routing

Table 3-6.

Secondary PCI Bus Interrupt and IDSEL Routing

 

 

 

 

 

 

 

 

 

 

Connector

IDSEL

INTA#

INTB#

INTC#

INTD#

 

 

 

 

 

 

 

 

J11

SAD16

SINTA#

SINTB#

SINTC#

SINTD#

 

 

 

 

 

 

 

 

J12

SAD17

SINTB#

SINTC#

SINTD#

SINTA#

 

 

 

 

 

 

 

 

J13

SAD18

SINTC#

SINTD#

SINTA#

SINTB#

 

 

 

 

 

 

 

 

J14

SAD19

SINTD#

SINTA#

SINTB#

SINTC#

 

 

 

 

 

 

 

3.6Battery Backup

Battery backup is provided to save any information in SDRAM during a power failure. The IQ80960RM/RN platform contains four AA NiCd batteries, a charging circuit and a regulator circuit. The batteries installed in the IQ80960RM/RN platform are rated at 600 mA/Hr.

SDRAM technology provides a simple way of enabling data preservation though the self-refresh command. When the processor receives an active Primary PCI reset it will issue the self-refresh command and drive the SCKE signals low. Upon seeing this condition a PAL on the IQ80960RM/RN platform will hold SCKE low before the processor loses power. The batteries will maintain power to the SDRAM and the PAL to ensure self-refresh mode. When the PAL sees PRST# returning to inactive state the PAL will release the hold on SCKE.

The battery circuit can be disabled by removing the batteries. LED CR4 indicates when the SDRAMs have sufficient power. If the batteries remain in the evaluation platform when it is depowered and/or removed from the chassis, the batteries will maintain the SDRAM for approximately 30 hours. Once power is again applied, the batteries will be fully charged in about four hours.

3.7Loss of Fan Detect

The i960 RM/RN I/O processor can be cooled by an active heat sink mounted on top. The fan provides a square wave output that is monitored by a comparator circuit on the IQ80960RM/RN platform. The frequency of the fan output is approximately 9K RPM. If the frequency falls below approximately 8K RPM the circuit will provide an interrupt to the processor. This is an evaluation board feature intended as an example of system hardware monitoring, since the IQ80960RM/RN platform does not ship with a heatsink.

Note: When using a passive heat sink, the processor never sees an interrupt from not having a fan.

IQ80960RM/RN Evaluation Board Manual

3-5

Page 24 Page 26
Image 25
Page 24 Page 26
Contents Board Manual IQ80960RM/RN Evaluation PlatformIQ80960RM/RN Evaluation Platform Board Manual Contents 2.1 Tables FiguresPage Introduction IQ80960RM/IQ80960RN Platform Functional Block DiagramIQ80960RN Platform Physical Diagram Software Development Tools I960 RM/RN I/O Processor and IQ80960RM/RN FeaturesIxWorks* Real-Time Operating System Tornado* for I20* Software Development ToolsetTornado Build Tools Tornado Test and Debug ToolsSPI610 Jtag Emulation System Ctools Software Development ToolsetCtools and the MON960 Debug Monitor About This Manual Brief description of the contents of this manual followsTechnical Support Notational-ConventionsIntel Customer Support Contacts Intel Customer Electronic Mail SupportCountry Literature Customer Support Number Document Information Related InformationCyclone Contacts Product Document Name Company/ Order #Page Software Installation Pre-Installation ConsiderationsInstalling Software Development Tools Getting StartedBattery Backup Hardware InstallationInstalling the IQ80960RM/RN Platforms in the Host System Verify IQ80960RM/RN Platform is FunctionalCreating and Downloading Executable Files Sample Download and Execution Using GDB960Page IQ80960RN Platform Power Requirements Power RequirementsIQ80960RM Platform Power Requirements Hardware ReferenceSdram Performance Sdram PerformanceTable Clocks Flash ROM Sdram ConfigurationsUpgrading Sdram Flash ROM ProgrammingPCI Slots Power Availability Secondary PCI Bus Expansion ConnectorsConsole Serial Port Uart Register AddressesLoss of Fan Detect Battery BackupInterrupt and Idsel Routing Secondary PCI Bus Interrupt and Idsel RoutingLogic Analyzer Header Definitions Logic Analyzer HeadersJ12 J10 Jtag Header Switch S1 SettingsJtag Header Pinout PinUser LEDs During Initialization User LEDs10. Start-up LEDs MON960 LEDs Tests11. IQ80960RM/RN Connectors and LEDs Page I960 RM/RN I/O Processor Overview I960 RM/RN I/O Processor Block DiagramIQ80960RM/RN Platform Memory Map CPU Memory MapLocal Interrupts I960 RN/RM I/O Processor I960 RM/RN I/O Processor Interrupt Controller ConnectionsPrimary PCI Interface CPU Counter/TimersSecondary PCI Interface Application Accelerator Unit DMA ChannelsApplication Accelerator Unit Performance Monitor UnitPage MON960 Components MON960 Support for IQ80960RM/RN1 MON960 Initialization Memory Controller Initialization 2 80960JT Core InitializationSdram Initialization Primary ATU Initialization Primary PCI Interface InitializationInitialization Modes Initialization Primary PCI Interface I960 Core SW1-1 SW1-2Secondary ATU Initialization PCI-to-PCI Bridge InitializationMON960 Extensions MON960 KernelSecondary PCI Initialization SysPCIBIOSPresent PCI Bios RoutinesSysFindPCIDevice SysGenerateSpecialCycle SysReadConfigWord SysWriteConfigByte SysWriteConfigDword Additional MON960 Commands Diagnostics / Example CodeBoard Level Diagnostics Secondary PCI DiagnosticsTable A-1. IQ80960RN Bill of Materials Sheet 1 Bill of MaterialsQty Location Part Description Manufacturer Table A-1. IQ80960RN Bill of Materials Sheet 2 Location Part Description Manufacturer Table A-1. IQ80960RN Bill of Materials Sheet 3CR8 Table A-1. IQ80960RN Bill of Materials Sheet 4Table A-2. IQ80960RM Bill of Materials Sheet 1 Table A-2. IQ80960RM Bill of Materials Sheet 2 Table A-2. IQ80960RM Bill of Materials Sheet 3 Table A-2. IQ80960RM Bill of Materials Sheet 4 Part Description Manufacturer Table A-2. IQ80960RM Bill of Materials Sheet 5Bill of Materials Table B-1. IQ80960RN Schematics List SchematicsSchematic Title IC Decoupling Connpcia REV Memory Controller Dclkin Dramclk LA Spares Dramclkla Mictor SDRAM-DIMM168P RST# Jtag Header Spci Conn Inta A6 RNC4R8P SAD48 SPAR64 SREQ4# Spares Table B-2. IQ80960RM Schematics List 80960RM REV Primary PCI Interface RCE1# RWE# Outb RAD16 TXD SBA0 DQ0 SCB0 SCE1# DQ2 SAD2 AD3S CONNPCI32 Trst A1 SINTD# B7 Intb Intc A7 SINTA# PALLV16V8-10JC Page Chip PALLV16V8Z-20JI PLD CodePage Recycling the Battery

RN, IQ80960RM specifications

The Intel IQ80960RM and RN are part of the Intel i960 family of microprocessors, which were specifically designed for embedded applications in real-time computing environments. Introduced in the early 1990s, these processors were aimed at providing high-performance processing capabilities in industrial, telecommunications, and military systems.

One of the key features of the IQ80960RM and RN is their ability to support a 32-bit architecture, delivering a significant performance advantage over 16-bit and earlier processors. This architecture enables the execution of complex algorithms and the management of large amounts of data, making these microprocessors suitable for demanding applications.

The i960 family is built around a superscalar architecture, allowing multiple instructions to be completed in a single clock cycle. This is achieved through advanced instruction pipelining, which significantly boosts throughput and overall computational speed. The IQ80960RM and RN also included features like branch prediction and out-of-order execution, enhancing efficiency and reducing latency in real-time applications.

Memory management capabilities are another strong point of the IQ80960RM and RN. They support both virtual and physical memory addressing, enabling sophisticated memory management strategies. Their integrated memory management unit (MMU) allows for easier and more effective memory allocation, critical for real-time operating systems that require precise timing and resource management.

Furthermore, these processors are designed with an extensive instruction set architecture (ISA), which supports a wide range of operations, including digital signal processing (DSP) tasks. This versatility allows them to be utilized in various applications, from automotive systems to robotics, where reliable performance is paramount.

The thermal performance and power efficiency of the IQ80960RM and RN has also been a notable characteristic. With operational capabilities across various temperature ranges, these chips are well-suited for harsh environments often found in industrial settings.

In terms of connectivity, the IQ80960 series supports multiple I/O interfaces and communication protocols, ensuring that they can integrate seamlessly with other components and systems. This flexibility enhances their usability in networked applications, particularly in embedded systems.

Overall, the Intel IQ80960RM and RN processors represent a significant step forward in embedded processor technology, characterized by their robust performance, advanced features, and ability to meet the stringent demands of real-time applications across various industries.
Top Page Image Contents