MC68HC08AS32 Datasheet, PDF (156/394 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Break Module (Break)
11.5.2 Break Address Registers
The break address registers contain the high and low bytes of the
desired breakpoint address. Reset clears the break address registers.
Address: $FE0C
Bit 7
6
5
4
3
2
1
Bit 0
Read:
BIT 15 BIT 13 BIT 13 BIT 12 BIT 11 BIT 10 BIT 9 BIT 8
Write:
Reset: 0
0
0
0
0
0
0
0
Figure 11-3. Break Address Register (BRKH)
Address: $FE0D
Bit 7
6
5
4
3
2
1
Bit 0
Read:
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Write:
Reset: 0
0
0
0
0
0
0
0
Figure 11-4. Break Address Register (BRKL)
11.6 Low-Power Modes
The WAIT and STOP instructions put the MCU in low-power standby
modes.
11.6.1 Wait Mode
If enabled, the break module is active in wait mode. The SIM break
stop/wait bit (SBSW) in the SIM break status register indicates whether
wait was exited by a break interrupt. If so, the user can modify the return
address on the stack by subtracting one from it to re-execute the stop or
wait opcode. (See 9.8.1 SIM Break Status Register.)
Advance Information
156
Break Module (Break)
MC68HC08AS32 — Rev. 3.0
MOTOROLA