MC68HC908QY2 MOTOROLA [Motorola, Inc], MC68HC908QY2 Datasheet - Page 205

• Manufacturer Part Number: MC68HC908QY2
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

17.5 Break Module Registers
17.5.1 Break Status and Control Register
MOTOROLA
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
Address: $FE0B
These registers control and monitor operation of the break module:
The break status and control register (BRKSCR) contains break module
enable and status bits.
BRKE — Break Enable Bit
BRKA — Break Active Bit
Reset:
Read:
Write:
•
•
•
•
•
This read/write bit enables breaks on break address register matches.
Clear BRKE by writing a logic 0 to bit 7. Reset clears the BRKE bit.
This read/write status and control bit is set when a break address
match occurs. Writing a logic 1 to BRKA generates a break interrupt.
Clear BRKA by writing a logic 0 to it before exiting the break routine.
Reset clears the BRKA bit.
Figure 17-3. Break Status and Control Register (BRKSCR)
1 = Breaks enabled on 16-bit address match
0 = Breaks disabled
1 = Break address match
0 = No break address match
Break status and control register (BRKSCR)
Break address register high (BRKH)
Break address register low (BRKL)
Break status register (BSR)
Break flag control register (BFCR)
BRKE
Bit 7
0
Break Module (BREAK)
= Unimplemented
BRKA
6
0
5
0
0
0
4
0
3
0
0
2
0
0
Break Module Registers
Break Module (BREAK)
1
0
0
Bit 0
0
0
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