S912XEG128J2MAA Datasheet, PDF (325/1324 Pages) Freescale Semiconductor, Inc – Microcontrollers

8.3.2.8.5
Chapter 8 S12X Debug (S12XDBGV3) Module
Debug Comparator Data High Register (DBGXDH)
Address: 0x002C
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 8-18. Debug Comparator Data High Register (DBGXDH)
Read: Anytime. See Table 8-29 for visible register encoding.
Write: If DBG not armed. See Table 8-29 for visible register encoding.
Table 8-35. 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
8.3.2.8.6 Debug Comparator Data Low Register (DBGXDL)
Address: 0x002D
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 8-19. Debug Comparator Data Low Register (DBGXDL)
Read: Anytime. See Table 8-29 for visible register encoding.
Write: If DBG not armed. See Table 8-29 for visible register encoding.
Table 8-36. DBGXDL Field Descriptions
Field
7–0
Bits[7:0]
Description
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
MC9S12XE-Family Reference Manual Rev. 1.25
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