Freescale Semiconductor MCF5480 - Manual (Page 737)

Memory Map/Register Definitions
MCF548x Reference Manual, Rev. 3
Freescale Semiconductor 24-17
Table 24-14 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
Table 24-14 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
Table 24-15 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