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(CMM5)
68000 Motorola Microprocessor Trainer
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ITEM |
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68000 Motorola Microprocessor Trainer |
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MODEL |
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CMM-68000 |
The CMM-68000 Trainer is a powerful and cost-effective single-board microcomputer based on Motorola 68000 CPU supported by Motorola peripheral chips. The trainer is a valuable aid for teaching in academic institutions, software and hardware development in research institutions and R&D labs. The powerful system monitor includes one-line assembler for mnemonic entry, disassembler and Centronics printer interface driver in addition to the user friendly set of debug monitor command. ABORT facility permits graceful recovery, preserving the complete user context, from “STUCK” programs
Main Features:
- 68000 CPU with 8 MHz clock
- 16 bit microprocessor
- 68230 parallel interface/timer :
* 16 I/O lines
* 8 user defined lines
* 24 bit counter/timer
- 68681 duart :
* 2 RS-232 ports via DB 9-way
* 6 output lines
* 4 input lines
- Operates on single +5v power supply with a PC compatible system through its RS 232 C serial communication interface
- powerful system monitor permits entry of programs, debugging through breakpoint, trace and instruction step facilities.
- Hardware debugging through Read loop, Write loop and Test memory command
- Centronics printer Driver included in the monitor program
- Interfacing with PC compatibles, with file upload / download capability
- ABORT facility to recover gracefully from “STUCK” programs.
- Flexible and powerful interrupt system.
- Supported by a variety of interface modules
- Built-in On-line Assembler, Disassembler.
- Trainer has on board memory of 128K bytes of monitor firmware, 64K of RAM, expandable up to 256K bytes of optional ROM / RAM.
- On board serial printer interface.
- ABORT facility to recover gracefully from "STUCK" program.
- Flexible and Powerful Interrupt system.
- On board European standard G64 Bus interface.
- Provision for multi-master design expansion.
- Provision for Nickel cadmium battery for battery back-up of RAM.
- Student Manual with Programming Exercises
- Supported by variety of Interface Modules
The CMM-68000 has been specifically designed for educational establishments which are running courses in computer science and information technology as well as electronic engineering . The Motorola 68000 is ideally suited for teaching purposes as its architecture is simple to learn and understand. ROM resident software includes a full screen editor and assembler and powerful monitor facilities. Executable programs may be downloaded from the host PC. Careful bus arbitration design permits the access of all on-board resources by an off-board master making it easy to expand into a multi-master configuration. The unit interfaces directly to the Labtech Applications Board and the PC based computer control and microprocessor training system. The trainer can be used by students to develop software in assembly language or in a high level language at introductory, intermediate or advanced level.
The CMM-68000 features both the 68230 PIT and 68681 DUART chips, enabling students to examine and learn how these two important members of the 68000 series function.
Every Trainer is supplied complete with a manual which includes structured courseware on the 68000 and its family of peripheral ICs.
Specifications:
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Central Processing Unit |
68000 at 8 MHz |
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Memory |
ROM: Four JEDEC compatible 28 pin sockets provide 128K Bytes using 4 x 27256 256K Bytes using 4 x 27512 System firmware is supplied in 2 x 27256 Rest is for user expansion. RAM: Four 28-pin sockets to give 128K bytes using 4 x 62256. 64K Bytes supplied using 2 x 62256. Reset is for user expansions |
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Interface Signals |
Parallel I/O:24 lines of TTL compatible signals brought out to Spectra Strip type 26 pin ribbon cable connectors. Serial I/O: Two RS 232 C ports with standard MODEM control signals through on-board 9 pin D-type connectors. |
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Peripherals |
68681 Dual UART: To Provide two RS-232C Port 8 output lines, counter timer etc. 68230 Parallel Interface / Timer: To provide 16 I/O lines, 8 user defined lines and 24 bit counter timer with 5 bit (÷32) prescaler. Interrupts : On-board interrupt priority encoder, On-board autovector generation. Complete flexibility in selecting on-board / off-board interrupt sources. Level 7 interrupt is dedicated for implementing ABORT function |
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Bus |
Buffered TTL Compatible bus signals brought out to Spectra Strip type 50 pin ribbon cable connector for easy expansion. Bus arbitration signals available on the connector. Provision for accessing on-board resources by off-board master. |
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Power Supply |
5 v, @ 750 m a |
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Dimensions |
with abs plastic molded cabinet. l x b x h:365 x 275 x 55 weight:1750gms |
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Standard Package |
1) 68K-2 Trainer 2) XT68K2 Driver Software 3) RS-232C cables set 4) User's manual |
OPTIONAL ACCESSORIES (Optional):
| - | Power supply ( 5V @ 3A, +/- 12V @ 250mA, 30V @ 100mA ). |
| - | +5V Power Adaptor |
| - | Interface Modules: Keyboard, Elevator, Display, ADC using DAC, Dual Slope ADC, Dual ADC, Logic Controller, Traffic Light, RTC, 18 Column Numeric Printer etc |
| - | 68020 / 68881 upgrade : A plug in replacement for 68000 processor which allows all the advanced features of the 68020 and 68681. |
| - | Centronics printer interface cable |
| - | 50 core ribbon cable connector set |
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Copyright (c)2002 Information Technology Department, LABTECH International - All rights reserved |
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