Nexus Development Interface (NDI) RM0046
874/936 Doc ID 16912 Rev 5
18:19 IAC3ER
Instruction Address Compare 3 Effective/Real Mode
00 – IAC3 debug events are based on effective address
01 – Unimplemented in e200z0h (Book E real address compare), no match can occur
10 – IAC3 debug events are based on effective address and can only occur if MSR
IS
=0
11 – IAC3 debug events are based on effective address and can only occur if MSR
IS
=1
20:21 IAC4US
Instruction Address Compare 4 User/Supervisor Mode
00 – IAC4 debug events not affected by MSR
PR
01 – Reserved
10 – IAC4 debug events can only occur if MSR
PR
=0 (Supervisor mode).
11 – IAC4 debug events can only occur if MSR
PR
=1. (User mode)
22:23 IAC4ER
Instruction Address Compare 4 Effective/Real Mode
00 – IAC4 debug events are based on effective address
01 – Unimplemented in e200z0h (Book E real address compare), no match can occur
10 – IAC4 debug events are based on effective address and can only occur if MSR
IS
=0
11 – IAC4 debug events are based on effective address and can only occur if MSR
IS
=1
24:25 IAC34M
Instruction Address Compare 3/4 Mode
00 – Exact address compare. IAC3 debug events can only occur if the address of the instruction
fetch is equal to the value specified in IAC3. IAC4 debug events can only occur if the
address of the instruction fetch is equal to the value specified in IAC4.
01 – Address bit match. IAC3 debug events can occur only if the address of the instruction fetch,
ANDed with the contents of IAC4 are equal to the contents of IAC3, also ANDed with the
contents of IAC4. IAC4 debug events do not occur. IAC3US and IAC3ER settings are used.
10 – Inclusive address range compare. IAC3 debug events can occur only if the address of the
instruction fetch is greater than or equal to the value specified in IAC3 and less than the
value specified in IAC4. IAC4 debug events do not occur. IAC3US and IAC3ER settings are
used.
11 – Exclusive address range compare. IAC3 debug events can occur only if the address of the
instruction fetch is less than the value specified in IAC3 or is greater than or equal to the
value specified in IAC4. IAC4 debug events do not occur. IAC3US and IAC3ER settings are
used.
26:31 — Reserved
Table 460. DBCR1 Bit Definitions (continued)
Bit(s) Name Description
To Next Page
Loading...
