Getac Technology Corporation V110GD Manual De Usuario

DS61168C-page 102

© 2011 Microchip Technology Inc.

bit 7-4

 Read as ‘0’

bit 3-0

 Reference Clock Source Select bits

1111

 = Reserved; do not use

•
•
•

1001

 = Reserved; do not use

1000

 = REFCLKI

0111

 = System PLL output 

0110

 = USB PLL output

0101

  = S

OSC

0100

  = LPRC

0011

  = FRC

0010

  = P

OSC

0001

 = PBCLK

0000

 = SYSCLK

The ROSEL and RODIV bits should not be written while the ACTIVE bit is ‘1’, as undefined behavior may 
result.

This bit is ignored when the ROSEL<3:0> bits = 0000 or 0001.

While the ON bit is set to ‘1’, writes to these bits do not take effect until the DIVSWEN bit is also set to’1’.