C8051F342 查看數據表（PDF） - Silicon Laboratories

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C8051F342

Full Speed USB Flash MCU Family

Silicon Laboratories 

C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D

SFR Definition 14.3. OSCLCN: Internal L-F Oscillator Control

R/W

R

R/W

OSCLEN OSCLRDY OSCLF3

Bit7

Bit6

Bit5

R

OSCLF2

Bit4

R/W

OSCLF1

Bit3

R/W

OSCLF0

Bit2

R/W

OSCLD1

Bit1

R/W

Reset Value

OSCLD0 00vvvv00

Bit0 SFR Address:

0x86

Bit7:

Bit6:

Bits5–2:

Bits1–0:

OSCLEN: Internal L-F Oscillator Enable.

0: Internal L-F Oscillator Disabled.

1: Internal L-F Oscillator Enabled.

OSCLRDY: Internal L-F Oscillator Ready Flag.

0: Internal L-F Oscillator frequency not stabilized.

1: Internal L-F Oscillator frequency stabilized.

OSCLF[3:0]: Internal L-F Oscillator Frequency Control bits.

Fine-tune control bits for the internal L-F Oscillator frequency. When set to 0000b, the L-F

oscillator operates at its fastest setting. When set to 1111b, the L-F oscillator operates at its

slowest setting.

OSCLD[1:0]: Internal L-F Oscillator Divider Select.

00: Divide by 8 selected.

01: Divide by 4selected.

10: Divide by 2 selected.

11: Divide by 1 selected.

134

Rev. 1.3

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