# CPU Features

The QEMU emulation of the OpenRISC architecture provides following built in features.

- Shadow GPRs

- MMU TLB with 128 entries, 1 way

- Power Management (PM)

- Programmable Interrupt Controller (PIC)

- Tick Timer

These features are on by default and the presence can be confirmed by checking the contents of the Unit Presence Register (`UPR`) and CPU Configuration Register (`CPUCFGR`).