C8051F966-A-GQ Silicon Labs, C8051F966-A-GQ Datasheet - Page 293

• Manufacturer Part Number: C8051F966-A-GQ
• Description: 8-bit Microcontrollers - MCU 32KB DC-DC LCD AES
• Manufacturer: Silicon Labs

Specifications of C8051F966-A-GQ

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 24.5 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 3.8 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFP-80
• Mounting Style: SMD/SMT

SFR Definition 23.3. OSCICL: Internal Oscillator Calibration
SFR Page = 0xF; SFR Address = 0xB3
Note: If the Precision Internal Oscillator is selected as the system clock, the following procedure should be used
Name
Reset
Type
6:0
Bit
Bit
7
when changing the value of the internal oscillator calibration bits. 
1. Switch to a different clock source. 
2. Disable the oscillator by writing OSCICN.7 to 0. 
3. Change OSCICL to the desired setting. 
4. Enable the oscillator by writing OSCICN.7 to 1.
OSCICL
Name
SSE
SSE
R/W
7
0
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.
Varies
R
6
Varies
R/W
5
Varies
R/W
Rev. 0.5
4
OSCICL
Function
Varies
R/W
3
[6:0]
Varies
R/W
2
C8051F96x
Varies
R/W
1
Varies
R/W
0
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