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Chapter 9
Clock Generator
Preliminary User’s Manual U15839EE1V0UM00
9.3.8 SSCG Frequency Control Register 1 (SCFC1)
This is an 8-bit register that controls the second frequency divider of the SSCG. It determines the
SSCG output frequency in fixed frequency mode and the upper SSCG output frequency in dithering
mode.
This register can be read or written in 8-bit or 1-bit units.
Figure 9-9:
SSCG Frequency Control Register 1 (SCFC1)
Caution:
This register can only be written if the SSCG enable bit SCEN is cleared.
7
6
5
4
3
2
1
0
Address
Initial
value
SCFC1
SCFC17
SCFC16
SCFC15
SCFC14
SCFC13
SCFC12
SCFC11
SCFC10
FFFFF82EH
40H
Bit Position
Bit Name
Function
7 to 0
SCFC17 to
SCFC10
Specifies the second frequency divider of the SSCG
f
X
= 4 MHz:
f
X
= 5 MHz:
The initialization of the SCFC1 register depends to the output frequency supplied by
the main oscillation circuit. The values mentioned above must not be changed after
initialization.
SCFC17 to SCFC10
Fixed or Upper SSCG frequency f
XX
003FH
128 MHz
SCFC17 to SCFC10
Fixed or Upper SSCG frequency f
XX
0032H
127.5 MHz
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