Datasheet

235

32142D–06/2013

ATUC64/128/256L3/4U

13.7.14 Status Register

Name:

Access Type: Read-only

Offset: 0x0D4

Reset Value: 0x00000020

• AE: Access Error

0: No access error has occurred.

1: A write to lock protected register without unlocking it has occurred.

• CKRDY: Clock Ready

0: One of the CPUSEL/PBxSEL registers has been written, and the new clock setting is not yet effective.

1: The synchronous clocks have frequencies as indicated in the CPUSEL/PBxSEL registers.

• CFD: Clock Failure Detected

0: Main clock is running correctly.

1: Failure on main clock detected. Main clock is now running on RCSYS.

31 30 29 28 27 26 25 24

AE-------

23 22 21 20 19 18 17 16

--------

15 14 13 12 11 10 9 8

--------

76543210

- - CKRDY - - - - CFD