Freescale Semiconductor MCF5480 User Manual
Page 737
Memory Map/Register Definitions
MCF548x Reference Manual, Rev. 3
Freescale Semiconductor
24-17
below shows the encodings for the comparator 1 type bits. These bits are set to 000 at reset
signifying an uninitialized state.
Table 24-13. Debug Control Field Descriptions
Bits
Name Description
31–16
Block Tasks Specify for each of tasks 15-0, whether to block that task with detection of a breakpoint
0 Do not block task
1 Block the task
15
AA
AutoArm—The bit specifies whether or not the triggered bit dbgStatusReg[16] will be automatically
reset to 0 following the saving of context for a breakpoint. This bit is set to 0 at reset.
0 Triggered bit will not be automatically reset
1 Triggered bit will be automatically reset
14
B
Breakpoint—This bit specifies whether or not to take a breakpoint. This bit is set to 0 at reset.
0 Disable breakpoints
1 Enable breakpoints
13-11
Comparator
Type 1
Comparator 1 type—These bits specify the type of data that has been loaded into comparator 1;
refer to
for the bit encodings.
10-8
Comparator
Type 2
Comparator 2 type—These bits specify the type of data that has been loaded into comparator 2;
refer to
for the bit encodings
7
AND/OR
AND/OR—This specifies what type of operation is to be used with the comparators. This bit is set
to 0 at reset.
0 Indicates a OR’ing of the comparators
1 Indicates a AND’ing of the comparators
6-3
Reserved.
2
E
Enable external breakpoint.
0 Do not enable external breakpoint to cause a halt condition
1 Allow external breakpoint to cause a halt condition
1
I
Enable internal breakpoint
0 Do not enable internal breakpoint to cause a halt condition
1 Allow internall breakpoint to cause a halt condition
0
—
Reserved.
Table 24-14. Comparator 1 Type Bit Encoding
Encodings
Comparator 1 Type
000
uninitialized
001
write address
010
read address
011
current pointer
100
task #
101
reserved
110
reserved
111
reserved