mc68hc908gp20 Freescale Semiconductor, Inc, mc68hc908gp20 Datasheet - Page 101

• Manufacturer Part Number: mc68hc908gp20
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

MC68HC908GP20
Freescale Semiconductor
Note: Writing a logic 0 clears BW.
Addr.
$FE0A
$FE0B
$FE00
$FE03
$FE09
SIM Break Status Register
Break Status and Control
Break Address Register
Break Address Register
SIM Break Flag Control
Register Name
Register (BRKSCR)
Register (SBFCR)
High (BRKH)
Low (BRKL)
—
IAB15–IAB0
Rev 2.1
(SBSR)
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Figure 6-1. Break Module Block Diagram
IAB15–IAB8
IAB7–IAB0
Figure 6-2. I/O Register Summary
BREAK ADDRESS REGISTER HIGH
BREAK ADDRESS REGISTER LOW
Bit 7
BCFE
BRKE
Bit 15
Bit 7
R
0
0
0
0
0
0
8-BIT COMPARATOR
8-BIT COMPARATOR
= Unimplemented
BRKA
14
R
R
6
0
0
0
6
0
0
13
R
5
R
0
0
0
5
0
0
0
12
4
R
R
R
1
1
0
4
0
0
0
CONTROL
= Reserved
11
3
R
R
0
0
0
3
0
0
0
10
2
R
R
0
0
0
2
0
0
0
BREAK
Advance Information
NOTE
BW
R
1
0
9
0
1
0
0
0
Bit 0
Bit 8
Bit 0
R
R
0
0
0
0
0
0
101