80960HA/HD/HT

Table 26. 80960Hx Boundary Scan Chain (Sheet 2 of 4)

#

Boundary Scan Cell

Cell Type

Comment

 

 

 

 

 

D21

Bidirectional

 

 

 

 

 

 

D22

Bidirectional

 

 

 

 

 

 

D23

Bidirectional

 

 

 

 

 

 

D24

Bidirectional

 

 

 

 

 

 

D25

Bidirectional

 

 

 

 

 

 

D26

Bidirectional

 

 

 

 

 

 

D27

Bidirectional

 

 

 

 

 

 

D28

Bidirectional

 

 

 

 

 

 

D29

Bidirectional

 

 

 

 

 

 

D30

Bidirectional

 

 

 

 

 

 

D31

Bidirectional

 

 

 

 

 

 

BTERMBAR

Input

 

 

 

 

 

 

RDYBAR

Input

Appears as READYBAR in BSDL

 

file.

 

 

 

 

 

 

 

 

HOLD

Input

 

 

 

 

 

 

HOLDA

Output

 

 

 

 

 

 

Enable for HOLDA control

Control

 

 

 

 

 

 

ADSBAR

Output

 

 

 

 

 

 

BE3BAR

Output

Appears as BEBAR(3:0) in BSDL

 

file.

 

 

 

 

 

 

 

 

BE2BAR

Output

 

 

 

 

 

 

BE1BAR

Output

 

 

 

 

 

 

BE0BAR

Output

 

 

 

 

 

 

BLASTBAR

Output

 

 

 

 

 

 

DENBAR

Output

 

 

 

 

 

 

WRRDBAR

Output

Appears as WRBAR in BSDL file.

 

 

 

 

 

DTRBAR

Output

 

 

 

 

 

 

Enable for DTRBAR

Control

 

 

 

 

 

 

WAITBAR

Output

 

 

 

 

 

 

BSTALL

Output

 

 

 

 

 

 

DATACODBAR

Output

Appears as DCBAR in BSDL file.

 

 

 

 

 

USERSUPBAR

Output

Appears as SUPBAR in BSDL file.

 

 

 

 

 

Enable for ADSBAR, BEBAR,

 

 

 

BLASTBAR, DENBAR, WRRDBAR,

Control

 

 

WAITBAR, DCBAR, SUPBAR and

 

 

 

 

 

LOCKBAR,

 

 

 

 

 

 

NOTES:

1.Cell#1 connects to TDO and cell #112 connects to TDI.

2.All outputs are tri-state.

3.In output and bidirectional signals, a logical 1 on the enable signal enables the output. A logical 0 tri-states the output.

Datasheet

85

Page 85
Image 85
Intel 80960HT, 80960HD, 80960HA manual Hx Boundary Scan Chain Sheet 2, Lockbar

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.