Intel 80C186EC, 80L188EC, 80L186EB, 80L186EC, 80C186EB, 80C188EB IRISM Variables, Other Variables

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CHAPTER 6 iRISM-186 COMMANDS

This chapter describes the elements of iRISM-186 monitor code. This information is common to all implementations.

6.1iRISM VARIABLES

The following table lists the RISM variables and provides a description of each.

 

Table 6-1. iRISM Variables

 

 

Variable

Description

 

 

RISM_DATA

A 32-bit register that acts as the primary data interface between software

 

running in the host and the RISM running in the target.

 

 

RISM_ADDR

A 32-bit register that contains the address to be used for reading and writing

 

target memory. The base address is contained in the most significant word

 

and the offset is in the least significant word.

 

 

RISM_STATUS

An 8-bit register used to store RISM status and state information. This

 

register contains the following boolean flags:

 

 

 

BOOLEAN FLAGS

 

 

DATA_FLAG

Indicates that the next character received by the RISM should be treated as a

 

data byte, even if its value corresponds to an implemented command.

 

 

RUN_FLAG

Indicates that the target is running user code. It can modify the operation of

 

some RISM commands.

 

 

TRAP_FLAG

Indicates that the target was running user code, but that a software trap

 

suspended its execution. The TRAP_FLAG is cleared whenever RISM starts

 

execution of user code.

 

 

DIAG_FLAG

An optional flag that indicates that the target is operating in a diagnostic

 

mode. Details of this flag are implementation-dependent.

 

 

USER_CS /

Used to save the user’s program counter while the user’s code is not

USER_IP

executing.

 

 

USER_FLAGS

Saves the user’s program status word while the user’s code is not executing.

 

 

6.1.1Other Variables

Specific implementations of RISMs will require other variables for temporary storage.

6

6-1

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Contents Intel 186 EB/EC Evaluation Board User’s Manual Copyright Intel Corporation Contents Contents Chapter Introduction to the Software Trapisr Rism CommandsIrism Variables Rism StructureFigures About This Manual Page Chapter About this Manual Content OverviewItalics Notation ConventionsDocument Name Intel Order # Related DocumentsWorld Wide Web FaxBack ServiceElectronic Support Systems 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 MicroprocessorLCD I/O Memory ConfigurationSram F000FFFFPhysical 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, -COM1Quit POLL, -SIGNALReset SYSTEM, RES SYSTEM, RESET, RES 6 DOSReserved I/O Related InformationReserved Functions Reserved MemoryIECM-86 Commands Page Entering Commands Loading and Saving Object Code File OperationsInclude filename Other File OperationsLOG filename List filenameBreakpoints Resetting the TargetProgram Control BR bpnumber = codeaddr BR bpnumberGO Forever Program ExecutionProgram Stepping GO from codeaddr Till codeaddrGO from codeaddr Till codeaddr or codeaddr GO Till codeaddr or codeaddrStep Sstep Supported Data Types Displaying and Modifying Program VariablesByte byteaddress to byteaddress Byte CommandsByte byteaddress = bytevalue Word wordaddress to wordaddress Word CommandsByte byteaddress to byteaddress = bytevalue Word wordaddress = wordvalueDword dwordaddress = dwordvalue Dword CommandsWord wordaddress to wordaddress = wordvalue Dword dwordaddressStack stackaddress to stackaddress Stack CommandsDword dwordaddress to dwordaddress = dwordvalue Stack stackaddressPort portaddress = bytevalue String CommandsPort Commands String byteaddressWport wportaddress Wport CommandsPort portaddress to portaddress = bytevalue Processor Variables Wport wportaddress = wordvalueWport wportaddress to wportaddress Wport wportaddress to wportaddress = wordvaluePC =codeaddress IRISM-186 Commands Page Other Variables IRISM VariablesSending Data to the Host Rism CommandsRism Structure Receiving Data from the HostReadword Code 05H Setdataflag Code 00HTransmit Code 02H Readbyte Code 04HWritepc Code 11H Writedouble Code 09HLoadaddress Code 0AH Readpc Code 10HReadbport Code 16H TrapisrReportstatus Code 14H Monitorescape Code 15HWritereg Code 1CH Writewport Code 19HStep Code 1AH Readreg Code 1BHStart Up Commands / or \ Page Parts List Page PIN PWR Conn CN2PMLX PIN Header JUMP3PIN Header JUMP4 30 Header HDR2X30 ResetPIN SIP SKT SIP14 JP1SO20W XU9SOP44 Intel20 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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