80960HA/HD/HT 32-Bit High-Performance Superscalar Processor

Datasheet

Product Features

32-Bit Parallel Architecture

Load/Store Architecture

Sixteen 32-Bit Global Registers

Sixteen 32-Bit Local Registers

1.28 Gbyte Internal Bandwidth

(80 MHz)

On-Chip Register Cache

Processor Core Clock

80960HA is 1x Bus Clock

80960HD is 2x Bus Clock

80960HT is 3x Bus Clock

Binary Compatible with Other 80960 Processors

Issue Up To 150 Million Instructions per Second

High-Performance On-Chip Storage

16 Kbyte Four-Way Set-Associative Instruction Cache

8 Kbyte Four-Way Set-Associative Data Cache

2 Kbyte General Purpose RAM

Separate 128-Bit Internal Paths For Instructions/Data

3.3 V Supply Voltage

5 V Tolerant Inputs

TTL Compatible Outputs

Guarded Memory Unit

Provides Memory Protection

User/Supervisor Read/Write/Execute

32-Bit Demultiplexed Burst Bus

Per-Byte Parity Generation/Checking

Address Pipelining Option

Fully Programmable Wait State Generator

Supports 8-, 16- or 32-Bit Bus Widths

160 Mbyte/s External Bandwidth

(40 MHz)

High-Speed Interrupt Controller

Up to 240 External Interrupts

31 Fully Programmable Priorities

Separate, Non-maskable Interrupt Pin

Dual On-Chip 32-Bit Timers

Auto Reload Capability and One-Shot

CLKIN Prescaling, divided by 1, 2, 4 or 8

JTAG Support - IEEE 1149.1 Compliant

Order Number: 272495-008 September 2002

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Intel 80960HT, 80960HD manual 80960HA/HD/HT 32-Bit High-Performance Superscalar Processor

80960HT, 80960HA, 80960HD specifications

The Intel 80960 family of microprocessors, introduced in the late 1980s, marked a significant evolution in the landscape of embedded systems and high-performance computing. The series included notable members such as the 80960HD, 80960HA, and 80960HT, each offering distinct features, technologies, and characteristics tailored for specific applications.

The Intel 80960HD was primarily designed for high-performance applications, such as real-time processing and advanced embedded control systems. With a robust architecture, the 80960HD featured a 32-bit data bus and a 32-bit address bus, enabling it to access a larger memory space and providing superior performance for computational tasks. It included a sophisticated instruction set that facilitated efficient execution, particularly for computationally intensive tasks. The internal architecture also supported pipelining, allowing multiple instructions to be processed simultaneously, thus enhancing throughput.

The 80960HA variant was tailored for high-availability applications, making it ideal for embedded systems where reliability is paramount. This model incorporated features that emphasized fault tolerance and stability, ensuring that systems relying on it could maintain operational integrity even in the event of component failures. The 80960HA showcased enhanced error detection and correction capabilities, which contributed to its reputation as a dependable choice for mission-critical applications.

On the other hand, the 80960HT was designed to meet the needs of high-performance telecommunications and networking applications. Recognized for its ability to handle multiple tasks concurrently, the 80960HT included advanced features such as built-in support for multitasking and real-time processing. This made it an excellent fit for applications that demanded rapid data handling and processing, such as routers and switches in networking environments. Its architecture allowed for efficient context switching, ensuring that multiple processes could execute seamlessly.

All three variants utilized the same family architecture, enabling easy integration and compatibility across different applications. They also supported various memory management techniques, such as virtual memory and caching, enhancing their performance in diverse operating conditions. With their combination of high processing power, reliability, and flexibility, the Intel 80960 family of microprocessors played a crucial role in advancing embedded computing technologies, paving the way for modern-day processors and systems. The 80960 series remains a noteworthy chapter in the evolution of microprocessor design, reflecting the growing demands of the computing landscape during its time.