Microchip Technology MA160014 Hoja De Datos
PIC18(L)F2X/4XK22
DS41412E-page 30
2010-2012 Microchip Technology Inc.
FIGURE 2-2:
INTERNAL OSCILLATOR
MUX BLOCK DIAGRAM
MUX BLOCK DIAGRAM
FIGURE 2-3:
PLL_SELECT BLOCK
DIAGRAM
DIAGRAM
111
110
110
101
100
100
001
000
INTOSC
250 kH
Z
500 kH
Z
31.25 kH
Z
1
0
1
0
11
10
0
X
IRCF<2:0>
MFIOSEL
MFIOSEL
INTSRC
HF-16 MH
Z
HF-8 MH
Z
HF-4 MH
Z
HF-2 MH
Z
HF-1 MH
Z
LF-31.25
K
H
Z
MF-31.25
K
H
Z
HF-31.25
K
H
Z
HF-250
K
H
Z
MF-250
K
H
Z
HF-500
K
H
Z
MF-500
K
H
Z
3
011
010
PLL_Select
PLLCFG
FOSC<3:0> = 100x
PLLEN
TABLE 2-1:
PLL_SELECT TRUTH TABLE
Primary Clock MUX Source
FOSC<3:0>
PLLCFG
PLLEN
PLL_Select
FOSC (any source)
0000-1111
0
0
0
OSC1/OSC2 (external source)
0000-0111
1010-1111
1
x
1
0
1
1
INTOSC (internal source)
1000-1001
x
0
0
x
1
1