Cmsemicon CMS32L051 - Page 88

V1.2.2
CMS32L051 User Manual |Chapter 4 Clock Generation Circuit
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[Setting of the Frequency Selection Register (HOCODIV) of the High Speed Internal Oscillator].
Address: 0x40021C20
Symbol
7 6 5 4 3 2 1 0
HOCODIV
HOCODIV2
HOCODIV1
HOCODIV0
Selection of clock frequency for high-speed internal oscillators
FRQSEL4=0
FRQSEL4=1
FRQSEL3=0
FRQSEL3=1
FRQSEL3=0
FRQSEL3=1
0
0
0
f
IH
=24MHz
f
HOCO
=24MHz
f
IH
=32MHz
f
HOCO
=32MHz
f
IH
=48MHz
f
HOCO
=48MHz
f
IH
=64MHz
f
HOCO
=64MHz
0
0
1
f
IH
=12MHz
f
HOCO
=24MHz
f
IH
=16MHz
f
HOCO
=32MHz
f
IH
=24MHz
f
HOCO
=48MHz
f
IH
=32MHz
f
HOCO
=64MHz
0
1
0
f
IH
=6MHz
f
HOCO
=24MHz
f
IH
=8MHz
f
HOCO
=32MHz
f
IH
=12MHz
f
HOCO
=48MHz
f
IH
=16MHz
f
HOCO
=64MHz
0
1
1
f
IH
=3MHz
f
HOCO
=24MHz
f
IH
=4MHz
f
HOCO
=32MHz
f
IH
=6MHz
f
HOCO
=48MHz
f
IH
=8MHz
f
HOCO
=64MHz
1
0
0
Disable the
setting.
f
IH
=2MHz
f
HOCO
=32MHz
f
IH
=3MHz
f
HOCO
=48MHz
f
IH
=4MHz
f
HOCO
=64MHz
1
0
1
Disable the
setting.
f
IH
=1MHz
f
HOCO
=32MHz
Disable the
setting.
f
IH
=2MHz
f
HOCO
=64MHz
Others
Setting is prohibited
0
0
0
0
0
HOCODIV2
HOCODIV1
HOCODIV0
CLS
CSS
MCS
MCM0
0
0
0
0