PSC default state

Hiroshi Katagiri

Other Parts Discussed in Thread: AM1808, AM1810, OMAP-L138

In the documents, AM1808/AM1810 ARM Microprocessor System (SPRUGM9B)Table 8-1, 8-2 and

OMAP-L138 Applications Processor System (SPRUGM7E) Table 9-1, 9-2,

each module's default state controlled by PSC is described.

When is each module in the default state ? Just before ROM boot loader starts or after ROM boot loader running ?

I think the default state of ARM module is ENABLE, but it describes that is SwRstDisable.　So I'm confused.

0 Erik Welsh over 14 years ago

Katagiri-san,

The documentation refers to the default hardware state after power-on-reset (ie before the ROM boot loader runs).

Best Regards,

Erik

0 Hiroshi Katagiri over 14 years ago in reply to Erik Welsh

Thank you for your confirmation.

I think ARM is put in ENABLE state by the process prior to ROM boot loader after the default hardware state.

Is this correct ?

If so, is there any module that is put in a state other than default hardware state by the process, like ARM module ?

Processors forum