MC68HC908GZ8 FREESCALE [Freescale Semiconductor, Inc], MC68HC908GZ8 Datasheet - Page 272

• Manufacturer Part Number: MC68HC908GZ8
• Description: M68HC08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Development Support
272
1. Writing a logic 0 clears SBSW.
$FE00
$FE02
$FE03
$FE09
$FE0A
$FE0B
Addr.
Break Status and Control
Register Name
Break Status Register
Break Address High
Register (BRKSCR)
Break Address Low
Break Flag Control
ADDRESS BUS[15:0]
Register (BFCR)
Register (BRKH)
Register (BRKL)
See page 275.
See page 275.
See page 274.
See page 274.
See page 274.
Reserved
(BSR)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Figure 20-1. Break Module Block Diagram
Figure 20-2. Break I/O Register Summary
ADDRESS BUS[15:8]
ADDRESS BUS[7:0]
BRKE
BCFE
Bit15
Bit 7
Bit 7
R
R
0
0
0
0
0
BREAK ADDRESS REGISTER HIGH
BREAK ADDRESS REGISTER LOW
8-BIT COMPARATOR
8-BIT COMPARATOR
= Unimplemented
BRKA
Bit14
Bit 6
R
R
R
6
0
0
0
0
Bit13
Bit 5
R
R
R
5
0
0
0
0
0
Bit12
Bit 4
R
R
R
R
4
0
0
0
0
0
= Reserved
CONTROL
Bit11
Bit 3
R
R
R
3
0
0
0
0
0
Bit10
Bit 2
R
R
R
2
0
0
0
0
0
Freescale Semiconductor
BKPT
(TO SIM)
Note
SBSW
Bit 1
Bit9
R
R
1
0
0
0
0
0
0
(1)
Bit 0
Bit 0
Bit8
R
R
R
0
0
0
0
0