MC68HC908GT16 Datasheet, PDF (103/412 Pages) Motorola, Inc – Microcontrollers

Break Module (BRK)
Functional Description
IAB15–IAB8
IAB15–IAB0
BREAK ADDRESS REGISTER HIGH
8-BIT COMPARATOR
8-BIT COMPARATOR
BREAK ADDRESS REGISTER LOW
CONTROL
BREAK
IAB7–IAB0
Figure 6-1. Break Module Block Diagram
Addr. Register Name
Bit 7
Read: 0
SIM Break Status Register
$FE00
(SBSR) Write: R
See page 107.
Reset: 0
Note: Writing a logic 0 clear SBSW.
$FE03
Read:
SIM Break Flag Control
Register (SBFCR) Write:
See page 108.
Reset:
BCFE
0
$FE09
Read:
Break Address Register
High (BRKH) Write:
See page 106.
Reset:
Bit 15
0
Read:
Break Address Register
Bit 7
$FE0A
Low (BRKL) Write:
See page 106.
Reset: 0
Read:
Break Status and Control
$FE0B
Register (BRKSCR) Write:
See page 105.
Reset:
BRKE
0
6
5
0
0
R
R
0
0
R
R
14
13
0
0
6
5
0
0
0
BRKA
0
0
= Unimplemented
4
3
2
1
0
0
R
R
R
1
0
0
R
R
R
12
11
10
0
0
0
4
3
2
0
0
0
0
0
0
0
0
0
R = Reserved
Figure 6-2. I/O Register Summary
1
SBSW
NOTE
0
Bit 0
0
R
0
R
R
9
Bit 8
0
0
1
Bit 0
0
0
0
0
0
0
MC68HC908GT16 • MC68HC908GT8 — Rev. 2
MOTOROLA
Break Module (BRK)
Technical Data
103