S9S12XS256J0CAL Datasheet, PDF (215/738 Pages) Freescale Semiconductor, Inc – Microcontrollers

6.3.2.8.7
S12X Debug (S12XDBGV3) Module
Debug Comparator Data High Mask Register (DBGXDHM)
Address: 0x002E
R
W
Reset
7
Bit 15
0
6
Bit 14
0
5
Bit 13
0
4
Bit 12
0
3
Bit 11
0
2
Bit 10
0
1
Bit 9
0
0
Bit 8
0
Figure 6-20. Debug Comparator Data High Mask Register (DBGXDHM)
Read: Anytime. See Table 6-26 for visible register encoding.
Write: If DBG not armed. See Table 6-26 for visible register encoding.
Table 6-34. DBGXDHM Field Descriptions
Field
Description
7–0
Bits[15:8]
Comparator Data High Mask Bits — The Comparator data high mask bits control whether the selected
comparator compares the data bus bits [15:8] to the corresponding comparator data compare bits. This register
is available only for comparators A and C.
0 Do not compare corresponding data bit
1 Compare corresponding data bit
6.3.2.8.8 Debug Comparator Data Low Mask Register (DBGXDLM)
Address: 0x002F
R
W
Reset
7
Bit 7
0
6
Bit 6
0
5
Bit 5
0
4
Bit 4
0
3
Bit 3
0
2
Bit 2
0
1
Bit 1
0
0
Bit 0
0
Figure 6-21. Debug Comparator Data Low Mask Register (DBGXDLM)
Read: Anytime. See Table 6-26 for visible register encoding.
Write: If DBG not armed. See Table 6-26 for visible register encoding.
Table 6-35. DBGXDLM Field Descriptions
Field
7–0
Bits[7:0]
Description
Comparator Data Low Mask Bits — The Comparator data low mask bits control whether the selected
comparator compares the data bus bits [7:0] to the corresponding comparator data compare bits. This register
is available only for comparators A and C.
0 Do not compare corresponding data bit
1 Compare corresponding data bit
6.4 Functional Description
This section provides a complete functional description of the S12XDBG module. If the part is in secure
mode, the S12XDBG module can generate breakpoints but tracing is not possible.
S12XS Family Reference Manual Rev. 1.13
Freescale Semiconductor
215