C8051F310-TB Silicon Laboratories Inc, C8051F310-TB Datasheet - Page 122
C8051F310-TB
Manufacturer Part Number
C8051F310-TB
Description
BOARD PROTOTYPING W/C8051F310
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F310-TB
Contents
Board
Processor To Be Evaluated
C8051F31x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F310
Silicon Family Name
C8051F31x
Kit Contents
Board
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F310
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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C8051F310/1/2/3/4/5/6/7
122
Bit7:
Bits 6–0: OSCICL: Internal Oscillator Calibration Register.
Bit7:
Bit6:
Bits5–2: UNUSED. Read = 0000b, Write = don't care.
Bits1–0: IFCN1-0: Internal Oscillator Frequency Control Bits.
IOSCEN
R/W
R/W
Bit7
Bit7
UNUSED. Read = 0. Write = don’t care.
This register determines the internal oscillator period. This reset value for OSCICL deter-
mines the oscillator base frequency. The reset value is factory calibrated to generate an
internal oscillator frequency of 24.5 MHz.
IOSCEN: Internal Oscillator Enable Bit.
0: Internal Oscillator Disabled.
1: Internal Oscillator Enabled.
IFRDY: Internal Oscillator Frequency Ready Flag.
0: Internal Oscillator is not running at programmed frequency.
1: Internal Oscillator is running at programmed frequency.
00: SYSCLK derived from Internal Oscillator divided by 8.
01: SYSCLK derived from Internal Oscillator divided by 4.
10: SYSCLK derived from Internal Oscillator divided by 2.
11: SYSCLK derived from Internal Oscillator divided by 1.
SFR Definition 12.1. OSCICL: Internal Oscillator Calibration
IFRDY
SFR Definition 12.2. OSCICN: Internal Oscillator Control
R/W
Bit6
Bit6
R
R/W
R/W
Bit5
Bit5
R/W
R/W
Bit4
Bit4
Rev. 1.7
R/W
R/W
Bit3
Bit3
R/W
R/W
Bit2
Bit2
IFCN1
R/W
R/W
Bit1
Bit1
IFCN0
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
Reset Value
11000000
Reset Value
Variable
0xB3
0xB2
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