mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 475

• Manufacturer Part Number: mc9s12e256
• Description: Hcs12 Microcontrollers 16-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

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Freescale Semiconductor
The DBG module is designed for backwards compatibility to existing BKP modules. Register and bit names have changed from
the BKP module. This column shows the DBG register name, as well as the BKP register name for reference.
Comparator C can be used to enhance the BKP mode by providing a third breakpoint.
DBGCCX
DBGCCH
DBGCCL
DBGTBH
DBGCNT
DBGCAX
DBGCAH
DBGCBX
DBGCBH
DBGCAL
DBGCBL
DBGTBL
BKPCT0
BKPCT1
DBGC2
DBGC3
BKP0H
BKP1H
Name
BKP0X
BKP0L
BKP1X
BKP1L
1
(2)
(2)
(2)
W
W
W
W
W
W
W
W
W
W
W
W
W
W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
BKAMBH
BKABEN
Bit 15
Bit 15
Bit 15
Bit 15
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
TBF
PAGSEL
PAGSEL
PAGSEL
Figure 16-3. DBG Register Summary (continued)
= Unimplemented or Reserved
BKAMBL
Bit 14
FULL
Bit 6
14
14
14
6
0
6
6
6
MC9S12E256 Data Sheet, Rev. 1.08
BKBMBH
Bit 13
BDM
Bit 5
13
13
13
5
5
5
5
BKBMBL
TAGAB
Bit 12
Bit 4
12
12
12
4
4
4
4
RWAEN
BKCEN
Bit 11
Bit 3
11
11
11
3
3
3
3
EXTCMP
EXTCMP
EXTCMP
CNT
TAGC
Bit 10
RWA
Bit 2
Chapter 16 Debug Module (DBGV1)
10
10
10
2
2
2
2
RWCEN
RWBEN
Bit 1
Bit 9
1
9
1
9
1
9
1
RWC
RWB
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
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