Intel 80L186EB, 80L188EC, 80L186EC, 80C186EB, 80C188EB, 80L188EB Program Execution, GO Forever

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iECM-86 COMMANDS

5.3.3Program Execution

These commands start and stop execution of user code. The commands provided are:

GO

GO FOREVER

GO FROM code_addr

GO FROM code_addr FOREVER

GO FROM code_addr TILL code_addr

GO FROM code_addr TILL code_addr OR code_addr

GO TILL code_addr

GO TILL code_addr OR code_addr

HALT

If a GO with breakpoint command is entered, the user code bytes at the breakpoints are saved and INT3s are substituted. When a breakpoint is reached, the user’s software stops before the instruction that caused the breakpoint and the iECM-86 software restores the original user code. Note that this differs from the operation of most ICE modules, which stop just after the instruction executes. A problem associated with stopping before the break instruction executes is that subsequent GO commands may run into the breakpoint before any user code is executed. The iECM-86 avoids this problem by skipping the setting of any breakpoints set on the instruction that the current PC points to. If this happens to remove the last breakpoint set, you are warned, but the GO still executes with no breakpoints enabled. If this happens, you can use the HALT command to stop the program.

None of the GO commands can be executed while the user’s code is already running; the HALT command cannot be executed if the user’s code is not running. The GO commands that set breakpoints use BR[0] and possibly BR[1]. Any break value already in one of these breakpoints is overwritten and destroyed by these GO commands. If possible, the user should reserve the first two breakpoints for use by the GO commands, and set the remaining breakpoints (if required) explicitly with the BR commands.

GO

This command starts execution of the user’s code using the current

 

value of user’s program counter (PC) and the current breakpoint

 

array.

GO FOREVER

This command clears the breakpoint array and starts execution at the

 

current value of the user’s PC.

GO FROM code_addr This command loads the user’s PC with code_addr and starts execution of the user’s code using the current breakpoint array.

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Contents Intel 186 EB/EC Evaluation Board User’s Manual Copyright Intel Corporation Contents Contents Chapter Introduction to the Software Irism Variables Rism CommandsRism Structure TrapisrFigures About This Manual Page Chapter About this Manual Content OverviewItalics Notation ConventionsDocument Name Intel Order # Related DocumentsFaxBack Service Electronic Support SystemsWorld Wide Web Customer Support Telephone Numbers Technical SupportPage Getting Started Page Getting Started Intel 186 EC Evaluation Board Layout WHAT’S in Your KIT System RequirementsIntel 186 EB/EC Evaluation Board USER’S Manual ECM86 Page Hardware Overview Page LA19/WRT Prot Jumper SummaryPackaging MicroprocessorSram Memory ConfigurationF000FFFF LCD I/OPhysical Memory Map Flash Program Memory Jumper Assembly for Flash Downloading Programmable Logic Sram Static MemoryE1 Jumper Power SupplyInit Serial InterfaceCTS P2 Serial ChannelPin to 9-Pin Adaptor Expansion Interface EC Peripheral Expansion Connector JP2 40 pinEB Peripheral Expansion Connector JP2 24 pin CPU Bus Expansion EB and EC LCD Interface Demo LCD InterfacePage Introduction to Software Page Introduction to the Software Software FeaturesEmbedded Controller Monitor ECM RestrictionsUser Interface Diag COM2, -COM1Reset SYSTEM, RES SYSTEM, RESET, RES POLL, -SIGNAL6 DOS QuitReserved Functions Related InformationReserved Memory Reserved I/OIECM-86 Commands Page Entering Commands Loading and Saving Object Code File OperationsInclude filename Other File OperationsLOG filename List filenameResetting the Target Program ControlBreakpoints BR bpnumber = codeaddr BR bpnumberGO Forever Program ExecutionGO from codeaddr Till codeaddr or codeaddr GO from codeaddr Till codeaddrGO Till codeaddr or codeaddr Program SteppingStep Sstep Supported Data Types Displaying and Modifying Program VariablesByte Commands Byte byteaddress = bytevalueByte byteaddress to byteaddress Byte byteaddress to byteaddress = bytevalue Word CommandsWord wordaddress = wordvalue Word wordaddress to wordaddressWord wordaddress to wordaddress = wordvalue Dword CommandsDword dwordaddress Dword dwordaddress = dwordvalueDword dwordaddress to dwordaddress = dwordvalue Stack CommandsStack stackaddress Stack stackaddress to stackaddressPort Commands String CommandsString byteaddress Port portaddress = bytevalueWport Commands Port portaddress to portaddress = bytevalueWport wportaddress Wport wportaddress to wportaddress Wport wportaddress = wordvalueWport wportaddress to wportaddress = wordvalue Processor VariablesPC =codeaddress IRISM-186 Commands Page Other Variables IRISM VariablesRism Structure Rism CommandsReceiving Data from the Host Sending Data to the HostTransmit Code 02H Setdataflag Code 00HReadbyte Code 04H Readword Code 05HLoadaddress Code 0AH Writedouble Code 09HReadpc Code 10H Writepc Code 11HReportstatus Code 14H TrapisrMonitorescape Code 15H Readbport Code 16HStep Code 1AH Writewport Code 19HReadreg Code 1BH Writereg Code 1CHStart Up Commands / or \ Page Parts List Page PIN Header JUMP3 PIN Header JUMP4PIN PWR Conn CN2PMLX PIN SIP SKT SIP14 ResetJP1 30 Header HDR2X30SOP44 XU9Intel SO20W20 Header HDR2X20 Intel # PA28F400BV PNP Transistor SOT23 SMT PNP MMBT2907ALT1Table A-2 EC Board Manual Parts List Sheet 3 Index Index-2

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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