Z86K15 ICEBOX™ Emulator
Summary of Menus, Commands, and Operations
Zilog
4-21
ST97KEY0100
EMULATOR OPERATION
Hardware Reset
When you press the RESET button (or power down, then power up), the state of the target is reset,
and the initial blue screen and the ZILOG logo will be shown while the ICEBOX goes through the ini-
tialization sequence. Pressing the RESET button resets much of the status that you establish using
the GUI.
Hardware Reset While GUI Is Running
If you press the Hardware Reset while the GUI is running, a communication error dialog box will
appear with the following message: “Out of synchronization with the emulator.” This message ap-
pears when the power or RS-232C cable is removed, or whenever the ICEBOX emulator and the
host PC have failed to properly communicate with each other. You have three responses to this
message: Abort, Retry, or Ignore.
“Abort”
Quits the GUI altogether.
“Retry”
Resets the GUI by reinitializing. You are returned to the initial blue screen
with the Zilog logo.
“Ignore”
Attempts to reestablish communication between the GUI and ICEBOX
emulator without reinitializing.
ROM Size
The ICEBOX features selectable ROM sizing.
Breakpoint Implementation
The emulator bases its breakpoint facility completely on addresses, rather than on inserting special
“Trap” instructions into the program, which means you can set breakpoints in ROM on your target
board. The ICEBOX uses a 8Kx1 static RAM for each cycle emitted by the emulator during code ex-
ecution to implement the breakpoint function in hardware.
UM010001-0301
