s908gr32ag3vfa Freescale Semiconductor, Inc, s908gr32ag3vfa Datasheet - Page 263

• Manufacturer Part Number: s908gr32ag3vfa
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
1. Writing a 0 clears SBSW.
$FE00
$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 266.
See page 266.
See page 265.
See page 265.
See page 265.
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
(BSR)
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Figure 19-2. Break Module Block Diagram
Figure 19-3. Break I/O Register Summary
ADDRESS BUS[15:8]
ADDRESS BUS[7:0]
BRKE
BCFE
Bit 15
Bit 7
Bit 7
R
0
0
0
0
BREAK ADDRESS REGISTER HIGH
BREAK ADDRESS REGISTER LOW
8-BIT COMPARATOR
8-BIT COMPARATOR
= Unimplemented
BRKA
Bit 14
Bit 6
R
R
6
0
0
0
Bit 13
Bit 5
R
R
5
0
0
0
0
Bit 12
Bit 4
R
R
R
4
0
0
0
0
= Reserved
CONTROL
Bit 11
Bit 3
R
R
3
0
0
0
0
Bit 10
Bit 2
R
R
2
0
0
0
0
BKPT
(TO SIM)
Break Module (BRK)
Note
SBSW
Bit 9
Bit 1
R
1
0
0
0
0
0
(1)
Bit 0
Bit 8
Bit 0
R
R
0
0
0
0
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