INTEL 186 EB/EC EVALUATION BOARD USER’S MANUAL

GO FROM code_addr FOREVER

This command loads the user’s PC with code_addr, clears the breakpoint array, and starts execution of the user’s code.

GO FROM code_addr TILL code_addr

This command loads the user’s PC with the code_addr that follows the FROM keyword, sets the first breakpoint (BR[0]) to the code_addr that follows the TILL keyword, and starts execution of the user’s code.

GO FROM code_addr TILL code_addr OR code_addr

This command acts like the previous command, except that it also sets the second breakpoint (BR[1]) to the code_addr that follows the OR keyword.

GO TILL code_addr This command sets the first breakpoint (BR[0]) to code_addr and starts the execution of user code using the current setting of the user’s PC and the breakpoint array.

GO TILL code_addr OR code_addr

This command acts like the previous command, except that it also sets the second breakpoint (BR[1]) to the code_addr that follows the OR keyword.

HALT

This command stops execution of user code by forcing the processor

 

to execute a jump to self instruction in a reserved location.

5.3.4Program Stepping

These commands allow stepping through programs one instruction at a time. Between instruc- tions, the iECM-86 commands can be used to check the state of the variables changed by the instruction, to ensure that the program is operating properly. Stepping through code allows a more detailed look at what is going on in the program. The price paid for this detail is that stepping does not occur in real time; this makes it difficult, or perhaps impossible, to use on code that is tied to real-time events.

Stepping while interrupts are enabled would be confusing, since interrupt service routines would be stepped through as well as sequential code. iECM-86 avoids this problem by artificially locking out interrupts while stepping, ignoring the state of the interrupt enable (IF) or interrupt mask.

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Intel 80L186EC, 80L188EC GO from codeaddr Till codeaddr or codeaddr, GO Till codeaddr or codeaddr, Program Stepping
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80L188EB, 80C188EC, 80C188EB, 80L186EB, 80C186EB specifications

The Intel 80L188EC, 80C186EC, 80L186EC, 80C186EB, and 80L186EB microprocessors represent a significant evolution in Intel's 16-bit architecture, serving various applications in embedded systems and computing during the late 1980s and early 1990s. These microprocessors are designed to offer a blend of performance, efficiency, and versatility, making them suitable for a range of environments, including industrial control, telecommunications, and personal computing.

The Intel 80L188EC is a member of the 186 family, notable for its low-power consumption and integrated support for a range of peripheral devices. It operates at clock speeds of up to 10 MHz and features a 16-bit architecture, providing a balance of processing power and energy efficiency. The 80C186EC, on the other hand, is a more advanced version, offering enhanced performance metrics with faster clock speeds and improved processing capabilities, making it ideal for applications that require more computational power.

The 80L186EC shares similarities with the 80L188EC but is enhanced further for various low-power applications, especially where battery life is crucial. With a maximum clock speed of 16 MHz, it excels in scenarios demanding energy-efficient processing without sacrificing performance.

In contrast, the 80C186EB and 80L186EB are optimized versions that bring additional features to the table. The 80C186EB operates at higher clock speeds, coupled with an extended instruction set, enabling it to handle more complex tasks and run sophisticated software. These enhancements allow it to serve well in environments that require reliable performance under load, such as data acquisition systems or advanced control systems.

The 80L186EB is tailored for specific low-power scenarios, integrating Intel's sophisticated low-power technologies without compromising on speed. Utilizing advanced process technologies, these chips benefit from reduced heat output and extended operating life, a significant advantage in embedded applications.

Overall, these microprocessors showcase Intel's commitment to innovation in 16-bit processing, marked by their varying capabilities and power profiles tailored to meet the demands of diverse applications, from industrial systems to consumer electronics. Their legacy continues to influence subsequent generations of microprocessor designs, emphasizing performance, energy efficiency, and versatile applications in computing technology. As such, the Intel 80C186 and 80L188 families play a crucial role in understanding the evolution of microprocessor technology.
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