C8051F930-TB Silicon Laboratories Inc, C8051F930-TB Datasheet - Page 194

• Manufacturer Part Number: C8051F930-TB
• Description: BOARD TARGET/PROTO W/C8051F930
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F930-TB

• Contents: Board
• Processor To Be Evaluated: C8051F930
• Processor Series: C8051F9xx
• Data Bus Width: 8 bit
• Interface Type: I2C, UART, SPI
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 0.9 V to 3.6 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: C8051F930
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1472

C8051F93x-C8051F92x
SFR Definition 19.2. OSCICN: Internal Oscillator Control
SFR Page = 0x0; SFR Address = 0xB2
Note: It is recommended to use read-modify-write operations such as ORL and ANL to set or clear the enable bit of
this register.
SFR Definition 19.3. OSCICL: Internal Oscillator Calibration
SFR Page = 0x0; SFR Address = 0xB3
194
Reset
Reset
Name
Name
Type
Type
Bit
Bit
5:0
Bit
Bit
6:0
7
6
7
Reserved Reserved.
IOSCEN
IOSCEN
OSCICL
IFRDY
Name
Name
SSE
SSE
R/W
R/W
7
0
7
0
Internal Oscillator Enable.
0: Internal oscillator disabled.
1: Internal oscillator enabled.
Internal Oscillator Frequency Ready Flag.
0: Internal oscillator is not running at its programmed frequency.
1: Internal oscillator is running at its programmed frequency.
Read = 001111b. Must Write 001111b.
Spread Spectrum Enable.
0: Spread Spectrum clock dithering disabled.
1: Spread Spectrum clock dithering enabled.
Internal Oscillator Calibration.
Factory calibrated to obtain a frequency of 24.5 MHz. Incrementing this register
decreases the oscillator frequency and decrementing this register increases the
oscillator frequency. The step size is approximately 1% of the calibrated frequency.
The recommended calibration frequency range is between 16 and 24.5 MHz.
IFRDY
Varies
R
R
0
6
6
Varies
R/W
R/W
5
0
5
Varies
R/W
R/W
Rev. 1.1
4
0
4
OSCICL
Function
Function
Varies
R/W
R/W
3
Reserved
1
3
[6:0]
[5:0]
Varies
R/W
R/W
2
1
2
Varies
R/W
R/W
1
1
1
Varies
R/W
R/W
0
1
0