MC68HC08AS20 Datasheet, PDF (149/386 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

IAB[15:8]
IAB[15:0]
BREAK ADDRESS REGISTER HIGH
8-BIT COMPARATOR
8-BIT COMPARATOR
BREAK ADDRESS REGISTER LOW
CONTROL
BKPT
TO SIM
IAB[7:0]
Figure 11-1. Break Module Block Diagram
Table 11-1. Break I/O Register Summary
Addr.
Register Name
Bit 7 6
5
4
3
2
1 Bit 0
Read:
$FE0C
Break Address Register High
(BRKH)
Bit 15
Write:
14
13
12
11
10
Reset: 0
0
0
0
0
0
9
Bit 8
0
0
Read:
$FE0D
Break Address Register Low
(BRKL)
Bit 7
Write:
6
5
4
3
2
1
Bit 0
Reset: 0
0
0
0
0
0
0
0
Read:
0
0
0
0
0
0
$FE0E
Break Status and Control Register
(BRKSCR)
BRKE
Write:
BRKA
Reset: 0
0
0
0
0
0
0
0
= Unimplemented
MC68HC08AS20 — Rev. 4.1
Freescale Semiconductor
Advance Information
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