Specifications

Table Of Contents
ARM Debugger 107 ARM specific SYStem Commands
©1989-2014 Lauterbach GmbH
The debugger uses longer timeouts as might be needed when used on a chip emulation system like the
Palladium from Cadence.
SYStem.Option PC Define address for dummy fetches
Default address: 0
After each load or store operation from debug mode the ARM core makes some instruction fetches from
memory. These fetches are not necessary for the debugger, but it is not possible to suppress them.
This option allows to specify the base address of these fetches. The fetch address is anywhere within a
64 KByte block that begins at the specified base address. It is necessary to modify this option if these
fetches go to aborted memory locations.
This option is not available/required on the ARM10 and ARM11. There are no dummy-fetches on ARM10
and ARM11.
SYStem.Option PROTECTION Sends an unsecure sequence to the core
This option was made for certain ARM9 derivatives having a protected access to the debug features. It
sends the key pattern in the file in a certain way to the core in order to gain the right to debug the core.
This option is available on ARM9.
SYStem.Option PWRCHECK Check power and clock
Default: ON.
In case of a chip level TAP (SYStem.CONFIG MULTITAP) this option decides if power, clock and secure
state will be checked or not.
This option is only available on ARM11, Cortex-R, Cortex-A.
Format: SYStem.Option PC <addr>
Format: SYStem.Option PROTECTION <filename>
Format: SYStem.Option PWRCHECK [ON | OFF]