S12X Debug (S12XDBGV3) Module
MC9S12XHY-Family Reference Manual, Rev. 1.01
242
Freescale Semiconductor
6.3.2.8.5
Debug Comparator Data High Register (DBGXDH)
Read: Anytime. See
Table 6-26
for visible register encoding.
Write: If DBG not armed. See
Table 6-26
for visible register encoding.
6.3.2.8.6
Debug Comparator Data Low Register (DBGXDL)
Read: Anytime. See
Table 6-26
for visible register encoding.
Write: If DBG not armed. See
Table 6-26
for visible register encoding.
Address: 0x002C
7
6
5
4
3
2
1
0
R
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
W
Reset
0
0
0
0
0
0
0
0
Figure 6-18. Debug Comparator Data High Register (DBGXDH)
Table 6-32. DBGXAH Field Descriptions
Field
Description
7–0
Bits[15:8]
Comparator Data High Compare Bits — The Comparator data high compare bits control whether the selected
comparator compares the data bus bits [15:8] to a logic one or logic zero. The comparator data compare bits are
only used in comparison if the corresponding data mask bit is logic 1. This register is available only for
comparators A and C.
0 Compare corresponding data bit to a logic zero
1 Compare corresponding data bit to a logic one
Address: 0x002D
7
6
5
4
3
2
1
0
R
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
W
Reset
0
0
0
0
0
0
0
0
Figure 6-19. Debug Comparator Data Low Register (DBGXDL)
Table 6-33. DBGXDL Field Descriptions
Field
Description
7–0
Bits[7:0]
Comparator Data Low Compare Bits — The Comparator data low compare bits control whether the selected
comparator compares the data bus bits [7:0] to a logic one or logic zero. The comparator data compare bits are
only used in comparison if the corresponding data mask bit is logic 1. This register is available only for
comparators A and C.
0 Compare corresponding data bit to a logic zero
1 Compare corresponding data bit to a logic one
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