2.7.2.10 Configurable Fault Status Register
The CFSR indicates the cause of a MemManage fault, BusFault, or UsageFault. See the register summary in Table 2-44 for its attributes. The bit assignments are:
![](GUID-97417E71-3A92-466D-A3C4-FBC6EBEB94F9-low.png)
The following subsections describe the sub-registers that make up the CFSR:
The CFSR is byte accessible. You can access the CFSR or its sub-registers as follows:
- access the complete CFSR with a word access to 0xE000ED28
- access the MMFSR with a byte access to 0xE000ED28
- access the MMFSR and BFSR with a halfword access to 0xE000ED28
- access the BFSR with a byte access to 0xE000ED29
- access the UFSR with a halfword access to 0xE000ED2A