Technical Reference Manual
002-29852 Rev. *B
26.8.30 CLK_FLL_CONFIG
Description:
FLL Configuration Register
Address:
0x40261530
Offset:
0x1530
Retention:
Retained
IsDeepSleep:
Yes
Comment:
This register contains frequency lock loop (FLL) configuration. FLL circuit settings should not
be changed while it is a selected clock (connected to logic). This prevents clock glitches that
can crash the logic. Deselect the FLL using .BYPASS_SEL=FLL_REF
Default:
0x1000000
Bit-field Table
Bits
7
6
5
4
3
2
1
0
Name
FLL_MULT [7:0]
Bits
15
14
13
12
11
10
9
8
Name
FLL_MULT [15:8]
Bits
23
22
21
20
19
18
17
16
Name
None [23:18]
FLL_MULT [17:16]
Bits
31
30
29
28
27
26
25
24
Name
FLL
_ENABLE
[31:31]
None [30:25]
FLL
_OUTPUT
_DIV
[24:24]
Bit-fields
Bits Name
SW
HW
Default or
Enum
Description
0:17
FLL_MULT
RW
R
0
Multiplier to determine CCO frequency in multiples of
the frequency of the selected reference clock (Fref).
Ffll = (FLL_MULT) * (Fref / REFERENCE_DIV) /
(OUT1)
24
FLL_OUTPUT_DIV
RW
R
1
Control bits for Output divider. Set the divide value
before enabling the FLL, and do not change it while
FLL is enabled.
0: no division
1: divide by 2
1670
2022-04-18
TRAVEO™ T2G Automotive MCU: TVII-B-E-4M body controller entry registers