Z8700000ZEM Datasheet, PDF (3/3 Pages) Zilog, Inc. – Windows-Based User Interface

LIMITATIONS (Continued)
PRECAUTION LIST
Z8700000ZEM
CP95WRL1001
7. The ICEBOX breakpoint hardware does not distinguish
between instruction and data fetches. When a
breakpoint in the GUI is set, the breakpoint hardware
triggers when the addresses match for either code or
data fetches.
Example:
000C
000E
0010
0012
0013
0016
SRP
LD
LD
NOP
JP
NOP
#%0
R4, #%0016
R5, @R4
%000C
Setting the breakpoint at %0016 and click GO.
1. Breakpoint Overshoot. The Disassembly window shows
the processor halting at one or two instructions past
the instruction where the breakpoint was set.
2. Executing GUI. The GUI will occasionally continue to
indicate executing after it has been told to halt. Pushing
the GO button will then result in executing. (Executing
showing at the top of the screen).
3. The emulator cannot be operated while performing
ESD/EMI testing on the target board.
4. GUI software versions prior to 3.00 are incompatible
with hardware containing BOOTROM 3.00. The GUI
software may still boot, but will fail at some later point
of the session.
Result: The code will break and stop at %0012.
Note: This will not happen when Animate Mode is on
because the GUI is not using the hardware breakpoints
when in Animate Mode.
5. The status color bar in OTP dialog box will be cleared
in the area where a new window opens on top of it.
6. The PLC Z89C00 Assembler RESET symbol in symbol
table is fixed at 1000 when the assembly code contains
“VECTOR RESET =” statement.
7. For 386 PCs, set the baud rate to 19.2K or less
because the Windows’ communication driver does not
guarantee “reliable” operation at more than 9600
baud. Selecting a high baud rate on some slower 386
machines may crash the Windows environment.
© 1995 by Zilog, Inc. All rights reserved. No part of this document
may be copied or reproduced in any form or by any means
without the prior written consent of Zilog, Inc. The information in
this document is subject to change without notice. Devices sold
by Zilog, Inc. are covered by warranty and patent indemnification
provisions appearing in Zilog, Inc. Terms and Conditions of Sale
only. Zilog, Inc. makes no warranty, express, statutory, implied or
by description, regarding the information set forth herein or
regarding the freedom of the described devices from intellectual
property infringement. Zilog, Inc. makes no warranty of mer-
chantability or fitness for any purpose. Zilog, Inc. shall not be
responsible for any errors that may appear in this document.
Zilog, Inc. makes no commitment to update or keep current the
information contained in this document.
Zilog’s products are not authorized for use as critical compo-
nents in life support devices or systems unless a specific written
agreement pertaining to such intended use is executed between
the customer and Zilog prior to use. Life support devices or
systems are those which are intended for surgical implantation
into the body, or which sustains life whose failure to perform,
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to result in
significant injury to the user.
Zilog, Inc. 210 East Hacienda Ave.
Campbell, CA 95008-6600
Telephone [phone]
Telex 910-338-7621
FAX [phone]
Internet: http://www.zilog.com
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