DSPIC30F MICROCHIP [Microchip Technology], DSPIC30F Datasheet - Page 158

• Manufacturer Part Number: DSPIC30F
• Description: General Purpose and Sensor Families High-Performance Digital Signal Controllers
• Manufacturer: MICROCHIP [Microchip Technology]

dsPIC30F
20.2
20.2.1
While coming out of Power-on Reset or Brown-out
Reset, the device selects its clock source based on:
a)
b)
TABLE 20-2:
DS70083G-page 156
ECIO w/ PLL 4x
ECIO w/ PLL 8x
ECIO w/ PLL 16x
FRC w/ PLL 4x
FRC w/ PLL 8x
FRC w/ PLL 16x
XT w/ PLL 4x
XT w/ PLL 8x
XT w/ PLL 16x
HS2 w/ PLL 4x
HS2 w/ PLL 8x
HS2 w/ PLL 16x
HS3 w/ PLL 4x
HS3 w/ PLL 8x
HS3 w/ PLL 16x
ECIO
XT
HS
EC
ERC
ERCIO
XTL
LP
FRC
LPRC
Note 1:
Oscillator Mode
FOS<2:0> configuration bits that select one of
four oscillator groups,
and FPR<4:0> configuration bits that select one
of 13 oscillator choices within the primary group.
2:
Oscillator Configurations
OSC2 pin function is determined by (FPR<4:0>).
Note that OSC1 pin cannot be used as an I/O pin even if the secondary oscillator or an internal clock
source is selected at all times.
INITIAL CLOCK SOURCE
SELECTION
CONFIGURATION BIT VALUES FOR CLOCK SELECTION
PLL
PLL
PLL
PLL
PLL
PLL
PLL
PLL
PLL
PLL
PLL
PLL
PLL
PLL
PLL
External
External
External
External
External
External
External
Secondary
Internal FRC
Internal LPRC
Oscillator
Source
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
FOS<2:0>
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
Preliminary
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
0
The selection is as shown in Table 20-2.
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
X
X
X
Note:
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
1
0
X
X
X
Some devices may have different FOS
and FPR values from Table 20-2, depend-
ing on the oscillator modes supported.
Refer to individual device data sheets for
details.
FPR<4:0>
1
1
1
0
0
0
1
1
1
0
0
0
1
1
1
1
1
0
0
0
0
0
X
X
X
 2004 Microchip Technology Inc.
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
0
1
1
0
0
0
X
X
X
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
0
0
0
1
1
0
0
X
X
X
(Notes 1, 2)
(Notes 1, 2)
(Notes 1, 2)
Function
CLKOUT
CLKOUT
OSC2
OSC2
OSC2
OSC2
OSC2
OSC2
OSC2
OSC2
OSC2
OSC2
OSC2
OSC2
OSC2
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O