Freescale Semiconductor MC68HC908MR32 User Manual
Page 252
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MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
252
Freescale Semiconductor
Figure 18-1. Break Module Block Diagram
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$FE00
SIM Break Status Register
(SBSR)
Read:
R
R
R
R
R
R
BW
R
Write:
Reset:
0
$FE03
SIM Break Flag Control
Register (SBFCR)
Read:
BCFE
R
R
R
R
R
R
R
Write:
Reset:
0
$FE0C
Break Address Register High
(BRKH)
Read:
Bit 15
14
13
12
11
10
9
Bit 8
Write:
Reset:
0
0
0
0
0
0
0
0
$FE0D
Break Address Register Low
(BRKL)
Read:
Bit 7
6
5
4
3
2
1
Bit 0
Write:
Reset:
0
0
0
0
0
0
0
0
$FE0E
Break Status and Control
Register (BRKSCR)
Read:
BRKE
BRKA
0
0
0
0
0
0
Write:
Reset:
0
0
0
0
0
0
0
0
Note: Writing a 0 clears BW.
= Unimplemented
R
= Reserved
Figure 18-2. I/O Register Summary
IAB15–IAB8
IAB7–IAB0
8-BIT COMPARATOR
8-BIT COMPARATOR
CONTROL
BREAK ADDRESS REGISTER LOW
BREAK ADDRESS REGISTER HIGH
IAB15–IAB0
BREAK