MC68HC908QY2 MOTOROLA [Motorola, Inc], MC68HC908QY2 Datasheet - Page 203

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

MOTOROLA
1. Writing a logic 0 clears SBSW.
$FE00
$FE02
$FE03
$FE09
$FE0A
$FE0B
Addr.
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
Break Status and Control
Break Auxiliary Register
Break Status Register
Register Name
Break Address High
Register (BRKSCR)
Break Address Low
Break Flag Control
Register (BFCR)
Register (BRKH)
Register (BRKL)
ADDRESS BUS[15:0]
See page 208.
See page 207.
See page 209.
See page 206.
See page 206.
See page 205.
(BRKAR)
(BSR)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Figure 17-1. Break Module Block Diagram
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Figure 17-2. Break I/O Register Summary
ADDRESS BUS[15:8]
ADDRESS BUS[7:0]
BRKE
BCFE
Bit 7
Bit15
Bit 7
Bit 7
R
0
0
0
0
0
BREAK ADDRESS REGISTER HIGH
BREAK ADDRESS REGISTER LOW
Break Module (BREAK)
8-BIT COMPARATOR
8-BIT COMPARATOR
= Unimplemented
BRKA
Bit14
Bit 6
Bit 6
6
R
0
R
0
0
0
Bit13
Bit 5
Bit 5
R
R
5
0
0
0
0
0
Bit12
Bit 4
Bit 4
R
R
R
4
0
0
0
0
0
= Reserved
CONTROL
Bit11
Bit 3
Bit 3
R
R
3
0
0
0
0
0
Bit10
Bit 2
Bit 2
R
R
2
0
0
0
0
0
Break Module (BREAK)
Functional Description
BKPT
(TO SIM)
Note
SBSW
Bit 1
Bit 1
Bit9
R
1
0
0
0
0
0
0
(1)
Bit 0
Bit 0
Bit 0
Bit8
R
R
0
0
0
0
0
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