MC908JL16CFAE FREESCALE [Freescale Semiconductor, Inc], MC908JL16CFAE Datasheet - Page 182

• Manufacturer Part Number: MC908JL16CFAE
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Development Support
16.2.6.2 Break Address Registers
The break address registers contain the high and low bytes of the desired breakpoint address. Reset
clears the break address registers.
16.2.6.3 Break Status Register
The break status register contains a flag to indicate that a break caused an exit from stop or wait mode.
SBSW — SIM Break Stop/Wait
SBSW can be read within the break state SWI routine. The user can modify the return address on the
stack by subtracting one from it.
16.2.6.4 Break Flag Control Register (BFCR)
The break control register contains a bit that enables software to clear status bits while the MCU is in a
break state.
182
This status bit is useful in applications requiring a return to wait or stop mode after exiting from a break
interrupt. Clear SBSW by writing a logic zero to it. Reset clears SBSW.
1 = Stop mode or wait mode was exited by break interrupt
0 = Stop mode or wait mode was not exited by break interrupt
Address: $FE0C
Address: $FE0D
Address: $FE00
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Bit 15
Bit 7
Bit 7
Bit 7
Bit 7
R
R
0
0
Figure 16-4. Break Address Register High (BRKH)
Figure 16-5. Break Address Register Low (BRKL)
Figure 16-6. Break Status Register (BSR)
= Reserved
14
6
R
0
6
6
0
6
MC68HC908JL16 Data Sheet, Rev. 1.1
13
R
5
0
5
5
0
5
12
R
4
0
4
4
0
4
1. Writing a logic zero clears SBSW.
11
R
3
0
3
3
0
3
10
R
2
0
2
2
0
2
Note
SBSW
1
9
0
1
1
0
1
0
(1)
Freescale Semiconductor
Bit 0
Bit 8
Bit 0
Bit 0
Bit 0
R
0
0