Freescale Semiconductor MCF5480 - Manual (Page 738)

MCF548x Reference Manual, Rev. 3
24-18 Freescale Semiconductor
Table 24-15 below shows the encodings for the bits. These bits are set to 101 at reset signifying an
uninitialized state.
24.3.3.15 Debug Status (DBGSTAT)
Table 24-15. Comparator 2 Type Bit Encodings
Encodings Comparator 2 Type
000 uninitialized
001 write address
010 read address
011 current pointer
100 task #
101 counter value
110 reserved
111 reserved
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R 0 0 0 0 0 0 0 0 0 0 0 0 0 I E T
W w1c w1c
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R Task Blocked[15:0]
W w1c
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Reg
Addr
MBAR + 0x807C
Figure 24-18. Debug Status Register (DBGSTAT)
Table 24-16. Debug Status Field Descriptions
Bits Name Description
31-19 — Reserved.
18 I Interrupt. This bit indicates whether or not a interrupt has been taken. This bit is set to 0 at reset. It
can be written by the user or the PTD.
0 No Interrupt
1 Interrupt taken
17 E External Breakpoint. This bit indicates detection of an external breakpoint. Status bit is sticky and
requires a 1 to be written to it to clear it. The writing of a 0 to this bit has no effect. This bit is set to
0 at reset.
0 No external breakpoint detected
1 E xternal breakpoint detected