pic32mx320f032h Microchip Technology Inc., pic32mx320f032h Datasheet - Page 66

• Manufacturer Part Number: pic32mx320f032h
• Description: 64/100-pin General Purpose And Usb 32-bit Flash Microcontrollers
• Manufacturer: Microchip Technology Inc.

PIC32MX3XX/4XX
FIGURE 8-1:
DS61143F-page 64
Notes: 1. A series resistor, R
C1
C2
SOSCO
(3)
(3)
SOSCI
R
XTAL
S
2. The internal feedback resistor, R
3. Refer to the “PIC32MX Family Reference Manual” Section 6. “Oscillator Configuration” (DS61112) for help
4. PBCLK out is available on the OSC2 pin in certain clock modes.
OSC2
(1)
OSC1
Secondary Oscillator (SOSC)
determining the best oscillator components.
(4)
Primary Oscillator
POSC
R
F
(2)
Oscillator
8 MHz typical
PIC32MX3XX/4XX FAMILY CLOCK DIAGRAM
SOSCEN and FSOSCEN
LPRC
TUN<5:0>
Oscillator
FRC
Enable
To Internal
Logic
S
, may be required for AT strip cut crystals.
32.768 kHz
USB PLL
31.25 kHz typical
COSC<2:0>
FUPLLDIV<2:0>
FRCDIV<2:0>
F
div x
, is typically in the range of 2 to 10 MΩ.
PLL Input Divider
FPLLIDIV<2:0>
Postscaler
4 MHz ≤ F
div x
UF
UF
Preliminary
IN
IN
PLL Multiplier
PLLMULT<2:0>
F
= 4 MHz
IN
IN
PLL x24
div 16
PLL
≤ 5 MHz
PLLODIV<2:0>
PLL Output Divider
div y
div 2
XT, HS, EC
ECPLL, FRCPLL
XTPLL, HSPLL,
FUPLLEN
UFRCEN
FRC
FRC /16
FRCDIV
LPRC
SOSC
FSCMEN<1:0>
USB Clock (48 MHz)
Clock Control Logic
© 2009 Microchip Technology Inc.
NOSC<2:0>
COSC<2:0>
Fail-Safe
Monitor
Clock
CPU and Select Peripherals
PBDIV<2:0>
Postscaler
OSWEN
div x
FSCM Event
Timer1, RTCC
WDT, PWRT
FSCM INT
Peripherals
PBCLK