The Configuration Code Extension Register, at offset
is a read-only register that provides additional information about
the configuration of the ETM. Figure 14.4 shows the bit arrangement of the Configuration
Code Extension Register.
Table 14.5 shows
how the bit values correspond with the Configuration Code Extension Register
functions. The Configuration Code Register has the value
Number of instrumentation resources
Specifies the number of instrumentation resources.
Data address comparisons not supported
Indicates that data address comparisons are supported by ETM.
Indicates that all registers, except some Integration Test Registers, are readable. See Table 14.2 for details of the access permission to the Integration Test Registers. Registers with names that start with IT are the Integration Test Registers, for example ITATBCTR1.
Size of extended external input bus
Specifies the size of the extended external input bus.
Number of extended external input selectors
Specifies the number of extended external input selectors.