C8051F330DK Silicon Laboratories Inc, C8051F330DK Datasheet - Page 110

• Manufacturer Part Number: C8051F330DK
• Description: DEV KIT FOR C8051F330/F331
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F330DK

• Contents: Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
• Processor To Be Evaluated: C8051F33x
• Interface Type: RS-232
• Operating Supply Voltage: 7 V to 15 V
• Silicon Manufacturer: Silicon Labs
• Core Architecture: 8051
• Silicon Core Number: C8051F330
• Silicon Family Name: C8051F33x
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Silicon Laboratories C8051F330, C8051F331
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1264

C8051F330/1/2/3/4/5
114
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 H-F Oscillator Frequency Control Bits.
IOSCEN
R/W
Bit7
Bit7
R
-
SFR Definition 13.1. OSCICL: Internal H-F Oscillator Calibration
UNUSED. Read = 0. Write = don’t care.
This register determines the internal oscillator period. When set to 0000000b, the H-F oscil-
lator operates at its fastest setting. When set to 1111111b, the H-F oscillator operates at its
slowest setting. On C8051F330/1/2/3/4/5 devices, the reset value is factory calibrated to
generate an internal oscillator frequency of 24.5 MHz.
IOSCEN: Internal H-F Oscillator Enable Bit.
0: Internal H-F Oscillator Disabled.
1: Internal H-F Oscillator Enabled.
IFRDY: Internal H-F Oscillator Frequency Ready Flag.
0: Internal H-F Oscillator is not running at programmed frequency.
1: Internal H-F Oscillator is running at programmed frequency.
00: SYSCLK derived from Internal H-F Oscillator divided by 8.
01: SYSCLK derived from Internal H-F Oscillator divided by 4.
10: SYSCLK derived from Internal H-F Oscillator divided by 2.
11: SYSCLK derived from Internal H-F Oscillator divided by 1.
SFR Definition 13.2. OSCICN: Internal H-F Oscillator Control
IFRDY
R/W
Bit6
Bit6
R
R/W
Bit5
Bit5
R
-
R/W
Bit4
Bit4
R
-
Rev. 1.7
R/W
Bit3
Bit3
R
-
R/W
Bit2
Bit2
R
-
IFCN1
R/W
R/W
Bit1
Bit1
IFCN0
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
Reset Value
11000000
Reset Value
Variable
0xB2
0xB3