MC68HC908GP32 Datasheet, PDF (101/410 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Freescale Semiconductor, Inc.
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
6
5
4
3
2
Read:
$FE00
SIM Break Status
Register
(SBSR)
Write:
R
R
R
R
R
R
Reset:
SIM Break Flag Control ^Read: _BCFE
R
R
R
R
R
$FE03
Register Write:
(SBFCR) _{Reset: 0}
$FE09
Break Address ^Read: _{Bit 15}
14
13
12
11
10
Register High Write:
(BRKH) _{Reset: 0}
0
0
0
0
0
$FE0A
Break Address ^Read: _{Bit 7}
6
5
4
3
2
Register Low Write:
(BRKL) _{Reset: 0}
0
0
0
0
0
Break Status and Control ^Read: _{BRKE BRKA}
0
0
0
0
$FE0B
Register Write:
(BRKSCR) _{Reset: 0}
0
0
0
0
0
Note: Writing a logic 0 clears SBSW.
= Unimplemented
R = Reserved
Figure 6-2. I/O Register Summary
1
SBSW
Note
0
Bit 0
R
R
R
9
Bit 8
0
0
1
Bit 0
0
0
0
0
0
0
MC68HC908GP32•MC68HC08GP32 — Rev. 6
MOTOROLA
Break Module (BRK)
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Technical Data
99