MC68HC908MR8 Datasheet, PDF (331/372 Pages) Motorola, Inc – Microcontrollers

Break (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 20-1. Break Module Block Diagram
Addr. Register Name
Bit 7
6
5
4
3
Read
:
0
0
0
1
0
$FE0
0
SIM Break Status
Register (SBSR)
See page 336.
Write
:
R
R
R
R
R
Re-
set:
0
0
0
1
0
Read
:
$FE0
3
SIM Break Flag Con-
trol Register (SBFCR)
See page 337.
Write
:
BCFE
R
R
R
R
Re-
set:
0
Read
:
$FE0
C
Break Address Regis-
ter High (BRKH)
See page 334.
Write
:
Bit 15
14
13
12
11
Re-
set:
0
0
0
0
0
Figure 20-2. I/O Register Summary
2
1
Bit 0
0
BW
0
R
NOTE
R
0
0
0
R
R
R
10
9
Bit 8
0
0
0
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
Break (BRK)
Technical Data
331