C8051F317 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F317

8/16 kB ISP Flash MCU Family

Silicon Laboratories 

C8051F310/1/2/3/4/5/6/7

SFR Definition 12.3. CLKSEL: Clock Select

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Reserved Reserved Reserved Reserved Reserved Reserved Reserved

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

R/W

Reset Value

CLKSL0 00000000

Bit0 SFR Address:

0xA9

Bits7–1:

Bit0:

Reserved. Read = 0000000b, Must Write = 0000000.

CLKSL0: System Clock Source Select Bit.

0: SYSCLK derived from the Internal Oscillator, and scales per the IFCN bits in register

OSCICN.

1: SYSCLK derived from the External Oscillator circuit.

Table 12.1. Internal Oscillator Electrical Characteristics

VDD = 2.7 to 3.6 V; –40 to +85 °C unless otherwise specified.

Parameter

Conditions

Internal Oscillator Frequency

Internal Oscillator Supply

Current (from VDD)

OSCICN.7 = 1

Min Typ Max

24 24.5 25

— 450 1000

Units

MHz

µA

Rev. 1.6

119

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