Contents

57

A Summary of Aligned and Unaligned Transfers for 8-Bit Bus

81

58

Idle Bus Operation

82

59

Bus States

83

Tables

 

1

80960Hx Product Description

9

2

Fail Codes For BIST (bit 7 = 1)

12

3

Remaining Fail Codes (bit 7 = 0)

12

4

80960Hx Instruction Set

13

5

80960HA/HD/HT Package Types and Speeds

14

6

Pin Description Nomenclature

15

7

80960Hx Processor Family Pin Descriptions

16

8

80960Hx 168-Pin PGA Pinout— Signal Name Order

22

9

80960Hx 168-Pin PGA Pinout— Pin Number Order

24

10

80960Hx PQ4 Pinout— Signal Name Order

27

11

80960Hx PQ4 Pinout— Pin Number Order

29

13

80960Hx 168-Pin PGA Package Thermal Characteristics

32

12

Maximum TA at Various Airflows in °C (PGA Package Only)

32

15

80960Hx 208-Pin PQ4 Package Thermal Characteristics

33

14

Maximum TA at Various Airflows in °C (PQ4 Package Only)

33

17

80960Hx Device ID Model Types

35

18

Device ID Version Numbers for Different Steppings

35

16

Fields of 80960Hx Device ID

35

19

Absolute Maximum Ratings

37

20

Operating Conditions

37

21

VDIFF Specification for Dual Power Supply Requirements (3.3 V, 5 V)

39

22

80960Hx DC Characteristics

40

23

80960Hx AC Characteristics

42

25

80960Hx Boundary Scan Test Signal Timings

44

24

AC Characteristics Notes

44

26

80960Hx Boundary Scan Chain

84

Datasheet

5

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Intel 80960HA, 80960HD, 80960HT manual Tables

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.