3.5.5. Configuration Code Extension Register

The Configuration Code Extension Register, register 0x07A at offset 0x1E8, is read-only. Figure 3.6 shows the arrangement of bits in the register.

Figure 3.6. Configuration Code Extension Register bit assignments

Table 3.12 lists how the bit values correspond with the register functions. The Configuration Code Extension Register has the value 0x0000097A.

Table 3.12. Configuration Code Extension Register bit assignments

Bit numbersValueFunction
[31:12]0Reserved, RAZ.

All registers, except some integration test registers, are readable.

See Table 3.7 for details of the access to integration test registers [1].

[10:3]47Size of extended external input bus.
[2:0]2Number of extended external input selectors.

[1] Registers with names that start with IT are the Integration Test Registers, for example ITATBCTR1.

Copyright © 2005, 2007 ARM Limited. All rights reserved.ARM DDI 0367B