Z86CCP01ZEM Datasheet, PDF (5/8 Pages) Zilog, Inc. – In-Circuit Program Debug Emulation

Zilog
Z8® CCP™ In-Circuit Emulator
LIMITATIONS
1. Typing into the File Name box in order to change the 8. Single-stepping into the Halt instruction will cause an
drive in the file download and load symbol dialog
1 ^{ICEBOX “Fatal Error” message to be displayed on the}
boxes is not anticipated by the GUI. Instead, use the
screen. The ICE chip must be reset, either by /Reset
mouse in the Directories box as the workaround.
pin on the target board or by resetting the whole
ICEBOX by pressing the emulator MASTER RESET
2. Switching ICEBOX™ emulators without quitting the
button at the back of the emulator.
GUI is not supported and may cause unexpected
results.
9. Clicking on the HALT button does not always halt the
ICEBOX execution. If the application goes into Stop
3. The maximum loadable symbols is 32,768, provided
Mode or Halt Mode, the only way to halt the emulator
there is enough system resource (memory).
execution is by doing a Stop-Mode Recovery (as
4. The keyboard and mouse will lock up if the screen
saver supplied by Windows 3.1 times out while the
GUI software is waiting for the user to complete
defined by the user program). You may also reset the
application using the emulator MASTER RESET
button; however, this will reset the whole ICEBOX.
entering a line of assembly code in the Debug window. _{10. RC oscillator emulation is not supported.}
To recover, the user must reset the computer. The
workaround is to turn off the screen saver, set the 11. Since the emulator uses the Z86C50 ICE chip, Port 1
screen saver to a much longer time out value, finish
cannot be configured to Low EMI mode. Bit 4 in PCON
the line of code before the time-out occurs (press
registers must be set to logic “1”.
ENTER), or use a different screen saver such as “After
Dark.” This problem may also exist at other points in
Note: This is not a problem with the actual emulated
the GUI that request input from the user.
device.
5. Although GUI 3.00 and later support baud rates up to
57.6K baud, the actual maximum usable rate may be
less due to limitations of the user’s hardware or
system software setup. The maximum usable rate is
determined by the user’s tolerance of the frequency of
communication errors.
6. The initial blue Zilog screen can be distorted by other
active windows. This only affects the appearance, not
the functionality, of the GUI.
12. When the software enters a STOP mode and the
HALT control button in the GUI software is pressed,
any SMR source on the application board is activated.
The emulator will then jump back to address 000C,
which is normal. But when continuing the program with
a GO command from 000C, a POR reset is performed,
resetting all control registers.
A workaround is to do a JUMP 000D and execute with
GO. This will not issue a POR reset.
7. Do not put a breakpoint at addresses after STOP
instruction. This will cause the program counter to
continue at that location after a Stop-Mode Recovery.
13. Although the GUI displays two timers (T0,T1) for
Z86C02/E02, only Timer1 is valid for these devices.
14. Multiple emulators instances cannot be used when the
OTP Programming Window is open.
PRECAUTIONS
ALL Devices
1. 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.
2. For some 386 PCs, a baud rate of 19.2K or less is
necessary because the Windows' communication
driver does not guarantee “reliable” operation above
9600 baud. On some slower 386 machines, selecting
a high baud rate might crash the Windows'
environment or result in excessive communication
errors.
3. When simultaneously running two different GUI
versions on two different Communication Ports, the
former executed version is used for both emulators.
This is a Windows Operating System bug.
4. The emulator cannot be operated while performing
ESD/EMI testing on the target board.
5. Executing GUI. The GUI will occasionally continue to
indicate “Executing” after a Halt instruction. Pushing
the GO button will then result in Executing. (Executing
showing at the top of the screen.)
CP97Z8X5301
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