MC908GR8CDWE Datasheet, PDF (96/408 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Freescale Semiconductor, Inc.
Break Module (BRK)
6.6.2 Break Address Registers
The break address registers (BRKH and BRKL) contain the high and low
bytes of the desired breakpoint address. Reset clears the break address
registers.
Address: $FE09
Bit 7
6
5
4
3
2
1
Bit 0
Read:
Bit 15
14
13
12
11
10
Write:
9
Bit 8
Reset: 0
0
0
0
0
0
0
0
Figure 6-4. Break Address Register High (BRKH)
Address: $FE0A
Bit 7
6
5
4
3
2
1
Bit 0
Read:
Bit 7
6
5
4
3
2
1
Bit 0
Write:
Reset: 0
0
0
0
0
0
0
0
Figure 6-5. Break Address Register Low (BRKL)
6.6.3 Break Status Register
The break status register (SBSR) contains a flag to indicate that a break
caused an exit from wait mode. The flag is useful in applications
requiring a return to wait mode after exiting from a break interrupt.
Address: $FE00
Bit 7
6
5
4
3
2
1
Bit 0
Read: 0
0
0
1
0
0
BW
0
Write: R
R
R
R
R
R
NOTE
R
Reset: 0
0
0
1
0
0
0
0
Note: Writing a logic 0 clears BW. R
= Reserved
Figure 6-6. SIM Break Status Register (SBSR)
Technical Data
96
MC68HC908GR8 — Rev 4.0
Break Module (BRK)
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