MC9S08GT16 MOTOROLA [Motorola, Inc], MC9S08GT16 Datasheet - Page 256

• Manufacturer Part Number: MC9S08GT16
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Development Support
TRG3:TRG2:TRG1:TRG0 — Select Trigger Mode
15.5.3.9 Debug Status Register (DBGS)
This is a read-only status register.
AF — Trigger Match A Flag
BF — Trigger Match B Flag
256
Selects one of nine triggering modes
AF is cleared at the start of a debug run and indicates whether a trigger match A condition was met
since arming.
BF is cleared at the start of a debug run and indicates whether a trigger match B condition was met
since arming.
1 = Comparator A match.
0 = Comparator A has not matched.
1 = Comparator B match.
0 = Comparator B has not matched.
Reset:
Read:
Write:
1001 – 1111
TRG[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
Bit 7
AF
0
Figure 15-9. Debug Status Register (DBGS)
Table 15-2. Trigger Mode Selection
= Unimplemented or Reserved
MC9S08GB/GT Data Sheet, Rev. 2.3
A-only
A OR B
A Then B
Event-only B (store data)
A then event-only B (store data)
A AND B data (full mode)
A AND NOT B data (full mode)
Inside range: A ≤ address ≤ B
Outside range: address < A or address > B
No trigger
BF
6
0
ARMF
5
0
Triggering Mode
4
0
0
CNT3
3
0
CNT2
2
0
Freescale Semiconductor
CNT1
1
0
CNT0
Bit 0
0