Zilog EZ80F916 - Manual (Page 313)

UM014423-0607 Using the Debugger
ZiLOG Developer Studio II
eZ80Acclaim! ® User Manual
293
Figure 94. Registers Window
To change register values, do the following:
1. In the Registers window, highlight the value you want to change.
2. Type the new value and press the Enter key.
The changed value is displayed in red.
Special Function Registers Window
Click the Special Function Registers Window button to open up to 20 Special Function
Registers windows. Each Special Function Registers window displays the special function
registers in the standard eZ80Acclaim! architecture that belong to the selected group.
Addresses F00 through FFF are reserved for special function registers (SFRs).
Use the Group drop-down list to view a particular group of SFRs.
Figure 95. Special Function Registers Window
NOTE: There are several SFRs that when read are cleared or clear an associated register.
To prevent the debugger from changing the behavior of the code, a special group of
SFRs was created that groups these state changing registers. The group is called
SPECIAL_CASE. If this group is selected, the behavior of the code changes, and
the program must be reset.