The default configuration for ARM11 based cores (architecture v6) is to have the Timer and Interrupt controller disabled. The VIC (Vectored Interrupt Controller) is enabled for these cores instead.

If you want to use the Timer peripheral on an ARM11 RVISS target you need to manually enable the Timer and Interrupt controller by modifying two peripheral blocks in the "v6armiss.dsc" configuration file as shown below:

{ Intctrl = Default_Intctrl
}

{ Timer = Default_Timer
}

The "v6armiss.dsc" file can be found in the following directory:

\ARM\RVARMulator\ARMulator\<version>\<build>\<os>\v6armiss.dsc