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<root>
<device name='24FJ256GA406' product='PIC16' family='24F' bits='16' >
    <clock max_speed='32000000' master_divider='2' default='12000000' />

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//On the PIC24FJ64GB004 Family of USB microcontrollers, the PLL will not power up and be enabled
//by default, even if a PLL enabled oscillator configuration is selected (such as HS+PLL).
//This allows the device to power up at a lower initial operating frequency, which can be
//advantageous when powered from a source which is not gauranteed to be adequate for 48MHz
//operation.  On these devices, user firmware needs to manually set the CLKDIV<PLLEN> bit to
//power up the PLL.
MX_UINT16 pll_startup_counter = 600;
CLKDIVbits.PLLEN = 1;
while(pll_startup_counter--);

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//Setup configuration for 70MIPs using 8MHz Crystal
PLLFBD = 68;  // M=70
CLKDIVbits.PLLPOST = 0;   // N1=2
CLKDIVbits.PLLPRE = 0;    // N2=2
OSCTUN = 0;   //Tune FRC oscillator, if FRC is used

//Disable Watch Dog Timer
RCONbits.SWDTEN = 0;

// Clock switching to incorporate PLL
__builtin_write_OSCCONH(0x03);    // Initiate Clock Switch to Primary

// Oscillator with PLL (NOSC=0b011)
__builtin_write_OSCCONL(0x01);    // Start clock switching
while(OSCCONbits.COSC != 0b011);

// Wait for Clock switch to occur
while(OSCCONbits.LOCK != 1);

//USB H/W initialization for 70 MIPs
ACLKCON3 = 0x24C1;
ACLKDIV3 = 0x7;

// Wait for PLL to lock
ACLKCON3bits.ENAPLL = 1;
while(ACLKCON3bits.APLLCK != 1);