C8051F005DK Silicon Laboratories Inc, C8051F005DK Datasheet - Page 101
C8051F005DK
Manufacturer Part Number
C8051F005DK
Description
DEV KIT FOR F005/006/007
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Datasheet
1.C8051F005-TB.pdf
(171 pages)
Specifications of C8051F005DK
Contents
Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
Processor To Be Evaluated
C8051F01x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F005
Silicon Family Name
C8051F00x
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Silicon Laboratories C8051 F005/006/007
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1188
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F005DK
Manufacturer:
SiliconL
Quantity:
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101
Bit7:
Bits6-4: XOSCMD2-0: External Oscillator Mode Bits
Bit3:
Bits2-0: XFCN2-0: External Oscillator Frequency Control Bits
CRYSTAL MODE (Circuit from Figure 14.1, Option 1; XOSCMD = 11x)
RC MODE (Circuit from Figure 14.1, Option 2; XOSCMD = 10x)
C MODE (Circuit from Figure 14.1, Option 3; XOSCMD = 10x)
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
XTLVLD
Bit7
R
XTLVLD: Crystal Oscillator Valid Flag
(Valid only when XOSCMD = 1xx.)
0: Crystal Oscillator is unused or not yet stable
1: Crystal Oscillator is running and stable (should read 1ms after Crystal Oscillator is
00x: Off. XTAL1 pin is grounded internally.
010: System Clock from External CMOS Clock on XTAL1 pin.
011: System Clock from External CMOS Clock on XTAL1 pin divided by 2.
10x: RC/C Oscillator Mode with divide by 2 stage.
110: Crystal Oscillator Mode
111: Crystal Oscillator Mode with divide by 2 stage.
RESERVED. Read = undefined, Write = don’t care
000-111: see table below
Choose XFCN value to match the crystal or ceramic resonator frequency.
Choose oscillation frequency range where:
f = 1.23(10
f = frequency of oscillation in MHz
C = capacitor value in pF
R = Pull-up resistor value in k
Choose K Factor (KF) for the oscillation frequency desired:
f = KF / (C * AV+), where
f = frequency of oscillation in MHz
C = capacitor value on XTAL1, XTAL2 pins in pF
AV+ = Analog Power Supply on MCU in volts
XFCN
000
001
010
011
100
101
110
111
enabled to avoid transient condition).
XOSCMD2
R/W
Bit6
Figure 14.3. OSCXCN: External Oscillator Control Register
3
Crystal (XOSCMD =
11x)
f 12.5kHz
12.5kHz < f 30.3kHz
30.35kHz < f 93.8kHz
93.8kHz < f 267kHz
267kHz < f 722kHz
722kHz < f 2.23MHz
2.23MHz < f 6.74MHz
f > 6.74MHz
) / (R * C), where
XOSCMD1
R/W
Bit5
XOSCMD0
R/W
Bit4
RC (XOSCMD = 10x)
f 25kHz
25kHz < f 50kHz
50kHz < f 100kHz
100kHz < f 200kHz
200kHz < f 400kHz
400kHz < f 800kHz
800kHz < f 1.6MHz
1.6MHz < f 3.2MHz
Rev. 1.7
R/W
Bit3
-
XFCN2
R/W
Bit2
C (XOSCMD = 10x)
K Factor = 0.44
K Factor = 1.4
K Factor = 4.4
K Factor = 13
K Factor = 38
K Factor = 100
K Factor = 420
K Factor = 1400
XFCN1
R/W
Bit1
XFCN0
R/W
Bit0
SFR Address:
Reset Value
00110000
0xB1
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