Chapter 20 Debug (S12XDBGV2)
MC9S12XDP512 Data Sheet, Rev. 2.11
Freescale Semiconductor 809
20.3.1.11.2 Debug Comparator Address High Register (DBGXAH)
Read: Anytime
Write: Anytime when DBG not armed.
20.3.1.11.3 Debug Comparator Address Mid Register (DBGXAM)
Read: Anytime
Write: Anytime when DBG not armed.
0x0029
76543210
R0 Bit 22 21 20 19 18 17 Bit 16
W
Reset 00000000
Unimplemented or Reserved

Figure 20-15. Debug Comparator Address High Register (DBGXAH)

Table 20-29. DBGXAH Field Descriptions

Field Description
6–0
Bits [22:16]
Comparator Address High Compare Bits — The comparator address high compare bits control whether the
selected comparator will compare the address bus bits [22:16] to a logic 1 or logic 0. This register byte is ignored
for XGATE compares.
0 Compare corresponding address bit to a logic 0
1 Compare corresponding address bit to a logic 1
0x002A
76543210
RBit 15 14 13 12 11 10 9 Bit 8
W
Reset 00000000

Figure 20-16. Debug Comparator Address Mid Register (DBGXAM)

Table 20-30. DBGXAM Field Descriptions

Field Description
7–0
Bits [15:8]
Comparator Address Mid Compare Bits — The comparator address mid compare bits control whether the
selected comparator will compare the address bus bits [15:8] to a logic 1 or logic 0.
0 Compare corresponding address bit to a logic 0
1 Compare corresponding address bit to a logic 1