C8051F360-TB Silicon Laboratories Inc, C8051F360-TB Datasheet - Page 175

• Manufacturer Part Number: C8051F360-TB
• Description: BOARD TARGET/PROTO W/C8051F360
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F360-TB

• Contents: Board
• Processor To Be Evaluated: C8051F36x
• Interface Type: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: C8051F360
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1412

Bit 7:
Bits 6–4: XOSCMD2–0: External Oscillator Mode Bits.
Bit 3:
Bits 2–0: XFCN2–0: External Oscillator Frequency Control Bits.
CRYSTAL MODE (Circuit from Figure 16.1, Option 1; XOSCMD = 11x)
RC MODE (Circuit from Figure 16.1, Option 2; XOSCMD = 10x)
C MODE (Circuit from Figure 16.1, Option 3; XOSCMD = 10x)
SFR Page:
SFR Address:
XTLVLD XOSCMD2 XOSCMD1 XOSCMD0 Reserved
Bit7
R
XTLVLD: Crystal Oscillator Valid Flag.
(Valid only when XOSCMD = 11x.)
0: Crystal Oscillator is unused or not yet stable.
1: Crystal Oscillator is running and stable.
00x: External Oscillator circuit off.
010: External CMOS Clock Mode.
011: External CMOS Clock Mode with divide by 2 stage.
100: RC Oscillator Mode.
101: Capacitor Oscillator Mode.
110: Crystal Oscillator Mode.
111: Crystal Oscillator Mode with divide by 2 stage.
RESERVED. Read = 0b. Write = don't care.
000-111: see table below:
Choose XFCN value to match crystal frequency.
Choose XFCN value to match frequency range:
f = 1.23(10
f = frequency of oscillation in MHz
C = capacitor value in pF
R = Pullup resistor value in kΩ
Choose K Factor (KF) for the oscillation frequency desired:
f = KF/(C * V
f = frequency of oscillation in MHz
C = capacitor value on XTAL1, XTAL2 pins in pF
V
XFCN
F
0xB6
DD
000
001
010
100
101
110
011
111
SFR Definition 16.5. OSCXCN: External Oscillator Control
= Power Supply on MCU in Volts
R/W
Bit6
3
Crystal (XOSCMD = 11x)
)/(R * C), where
DD
590 kHz < f ≤ 1.5 MHz
225 kHz < f ≤ 590 kHz
10 MHz < f ≤ 30 MHz
84 kHz < f ≤ 225 kHz
1.5 MHz < f ≤ 4 MHz
4 MHz < f ≤ 10 MHz
32 kHz < f ≤ 84 kHz
), where
R/W
Bit5
f ≤ 32 kHz
R/W
Bit4
C8051F360/1/2/3/4/5/6/7/8/9
Rev. 1.0
800 kHz < f ≤ 1.6 MHz
1.6 MHz < f ≤ 3.2 MHz
100 kHz < f ≤ 200 kHz
200 kHz < f ≤ 400 kHz
400 kHz < f ≤ 800 kHz
RC (XOSCMD = 100)
Bit3
50 kHz < f ≤ 100 kHz
25 kHz < f ≤ 50 kHz
R
f ≤ 25 kHz
XFCN2
R/W
Bit2
XFCN1
R/W
Bit1
C (XOSCMD = 101)
K Factor = 1590
K Factor = 0.87
K Factor = 180
K Factor = 664
K Factor = 2.6
K Factor = 7.7
K Factor = 22
K Factor = 65
XFCN0
R/W
Bit0
00000000
Reset Value
175