Table of Contents
Advertisement
Chapter 28 Debug module (DBG)
28.4.4.3.6 A and B (full mode)
In the A and B trigger mode, comparator A compares to the address bus and comparator
B compares to the data bus. In the A and B trigger mode, if the match condition for A and
B happen on the same bus cycle, both the DBG_S[AF] and DBG_S[BF] flags are set. If a
match condition on only A or only B happens, no flags are set.
For breakpoint tagging operation with an end-trigger type trace, only matches from
comparator A will be used to determine if the Breakpoint conditions are met and
comparator B matches will be ignored.
28.4.4.3.7 A and not B (full mode)
In the A and not B trigger mode, comparator A compares to the address bus and
comparator B compares to the data bus. In the A and not B trigger mode, if the match
condition for A and not B happen on the same bus cycle, both the DBG_S[AF] and
DBG_S[BF] flags are set. If a match condition on only A or only not B occur no flags are
set.
For breakpoint tagging operation with an end-trigger type trace, only matches from
comparator A will be used to determine if the breakpoint conditions are met and
comparator B matches will be ignored.
28.4.4.3.8 Inside range, A ≤ address ≤ B
In the inside range trigger mode, if the match condition for A and B happen on the same
bus cycle, both the DBG_S[AF] and DBG_S[BF] flags are set. If a match condition on
only A or only B occur no flags are set.
28.4.4.3.9 Outside range, address < A or address > B
In the outside range trigger mode, if the match condition for A or B is met, the
corresponding flag in the DBGS register is set.
MC9S08SU16 Reference Manual, Rev. 5, 4/2017
NXP Semiconductors
571
Advertisement
Table of Contents
