
Development Support
Data Sheet
M68HC11E Family — Rev. 5
204
Development Support
MOTOROLA
A.3  EVS — Evaluation System
The EVS is an economical tool for designing, debugging, and evaluating target 
systems based on the M68HC11. EVS features include:
Monitor/debugger firmware
One-line assembler/disassembler
Host computer download capability
Dual memory maps:
–
64-Kbyte monitor map that includes 16 Kbytes of monitor EPROM
–
M68HC11 E-series user map that includes 64 Kbytes of emulation RAM
MCU extension input/output (I/O) port for single-chip, expanded, and 
special-test operation modes
RS-232C terminal and host I/O ports
Logic analyzer connector
A.4  Motorola Modular Development System (MMDS11)
The M68MMDS11 Motorola modular development system (MMDS11) is an 
emulator system for developing embedded systems based on an M68HC11 
microcontroller unit (MCU). The MMDS11 provides a bus state analyzer (BSA) and 
real-time memory windows. The unit's integrated development environment 
includes an editor, an assembler, user interface, and source-level debug. These 
features significantly reduce the time necessary to develop and debug an 
embedded MCU system. The unit's compact size requires a minimum of desk 
space.
The MMDS11 is one component of Motorola's modular approach to MCU-based 
product development. This modular approach allows easy configuration of the 
MMDS11 to fit a wide range of requirements. It also reduces development system 
cost by allowing the user to purchase only the modular components necessary to 
support the particular MCU derivative.
MMDS11 features include:
Real-time, non-intrusive, in-circuit emulation at the MCU’s operating 
frequency 
Real-time bus state analyzer
–
8 K x 64 real-time trace buffer
–
Display of real-time trace data as raw data, disassembled instructions, 
raw data and disassembled instructions, or assembly-language source 
code
–
Four hardware triggers for commencing trace and to provide breakpoints
–
Nine triggering modes
–
As many as 8190 pre- or post-trigger points for trace data
F
Freescale Semiconductor, Inc.
For More Information On This Product,
  Go to: www.freescale.com
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