MC68HC708XL36 FREESCALE [Freescale Semiconductor, Inc], MC68HC708XL36 Datasheet - Page 155

• Manufacturer Part Number: MC68HC708XL36
• Description: HCMOS Microcontroller Unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Break Address
Registers
Break Status
Register
7-brk_a
MOTOROLA
Register:
Address:
Address:
The break address registers contain the high and low bytes of the
desired breakpoint address. Reset clears the break address registers.
The break status register 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.
BW — Break Wait Bit
Reset:
Reset:
Reset:
Read:
Write:
Read:
Write:
Read:
Write:
This read/write bit is set when a break interrupt causes an exit from
wait mode. Clear BW by writing a logic 0 to it. Reset clears BW.
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = Break interrupt during wait mode
0 = No break interrupt during wait mode
Figure 4. Break Address Registers (BRKH and BRKL)
R = Reserved
$FE0C
$FE00
BRKH
Bit 15
Bit 7
Bit 7
Bit 7
R
0
0
0
0
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Figure 5. Break Status Register (BSR)
$FE0D
BRKL
14
R
6
0
6
0
6
0
0
BRK
NOTE: Writing a logic 0 clears BW.
13
R
5
0
5
0
5
0
0
12
R
4
0
4
0
4
1
1
11
R
3
0
3
0
3
0
0
10
R
2
0
2
0
2
0
0
Break Module Registers
MC68HC708XL36
NOTE
BW
1
9
0
1
0
1
0
Bit 0
Bit 8
Bit 0
Bit 0
R
0
0
0
0
BRK
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