18.7.8 DFLL48M Control B

Note: This register is read-synchronized: DFLLSYNC.DFLLCTRLB must be checked to ensure the DFLLCTRLB register synchronization is complete.
Name: DFLLCTRLB
Offset: 0x20
Reset: 0x00
Property: Read-Synchronized

Bit 76543210 
 WAITLOCKBPLCKCQLDISCCDISUSBCRMLLAWSTABLEMODE 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bit 7 – WAITLOCK Wait Lock

This bit controls the DFLL output clock, depending on lock status:

0: Output clock before the DFLL is locked.

1: Output clock when DFLL is locked (Fine lock).

Bit 6 – BPLCKC Bypass Coarse Lock

This bit controls the coarse lock procedure:

0: Bypass coarse lock is disabled.

1: Bypass coarse lock is enabled.

Bit 5 – QLDIS Quick Lock Disable

0: Quick Lock is enabled.

1: Quick Lock is disabled.

Bit 4 – CCDIS Chill Cycle Disable

0: Chill Cycle is enabled.

1: Chill Cycle is disabled.

Bit 3 – USBCRM USB Clock Recovery Mode

0: USB Clock Recovery Mode is disabled.

1: USB Clock Recovery Mode is enabled.

Bit 2 – LLAW Lose Lock After Wake

0: Locks will not be lost after waking up from sleep modes if the DFLL clock has been stopped.

1: Locks will be lost after waking up from sleep modes if the DFLL clock has been stopped.

Bit 1 – STABLE Stable DFLL Frequency

0: FINE calibration tracks changes in output frequency.

1: FINE calibration register value will be fixed after a fine lock.

Bit 0 – MODE Operating Mode Selection

0: The DFLL operates in open-loop operation.

1: The DFLL operates in closed-loop operation.