Table of Contents
Advertisement
Development Support
IAB15–IAB0
Addr.
Register Name
SIM Break Status Register
$FE00
(SBSR)
See page 255.
SIM Break Flag Control
$FE03
Register (SBFCR)
See page 255.
Break Address Register High
$FE0C
(BRKH)
See page 254.
Break Address Register Low
$FE0D
(BRKL)
See page 254.
Break Status and Control
$FE0E
Register (BRKSCR)
See page 254.
Note: Writing a 0 clears BW.
252
IAB15–IAB8
BREAK ADDRESS REGISTER HIGH
8-BIT COMPARATOR
8-BIT COMPARATOR
BREAK ADDRESS REGISTER LOW
IAB7–IAB0
Figure 18-1. Break Module Block Diagram
Bit 7
6
Read:
R
R
Write:
Reset:
Read:
BCFE
R
Write:
Reset:
0
Read:
Bit 15
14
Write:
Reset:
0
0
Read:
Bit 7
6
Write:
Reset:
0
0
Read:
BRKE
BRKA
Write:
Reset:
0
0
= Unimplemented
Figure 18-2. I/O Register Summary
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
CONTROL
5
4
3
R
R
R
R
R
R
13
12
11
0
0
0
5
4
3
0
0
0
0
0
0
0
0
0
R
= Reserved
BREAK
2
1
Bit 0
R
BW
R
0
R
R
R
10
9
Bit 8
0
0
0
2
1
Bit 0
0
0
0
0
0
0
0
0
0
Freescale Semiconductor
Advertisement
Table of Contents
