PIC24EP64MC204-E/PT Microchip Technology, PIC24EP64MC204-E/PT Datasheet - Page 154
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PIC24EP64MC204-E/PT
Manufacturer Part Number
PIC24EP64MC204-E/PT
Description
16 Bit MCU, 64KB Flash, 8KB RAM, 60 MHz, 44 Pin, MCPWM,QEI, 3 OpAmp, 4 Comp, PTG
Manufacturer
Microchip Technology
Datasheet
1.PIC24EP64MC204-EPT.pdf
(510 pages)
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Part Number:
PIC24EP64MC204-E/PT
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dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X, AND PIC24EPXXXGP/MC20X
REGISTER 9-1:
DS70657F-page 154
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15
bit 14-12
bit 11
bit 10-8
bit 7
bit 6
bit 5
bit 4
Note 1:
CLKLOCK
R/W-0
U-0
—
2:
3:
Writes to this register require an unlock sequence. Refer to Section 7. “Oscillator” (DS70580) in the
“dsPIC33E/PIC24E Family Reference Manual” (available from the Microchip web site) for details.
Direct clock switches between any primary oscillator mode with PLL and FRCPLL mode are not permitted.
This applies to clock switches in either direction. In these instances, the application must switch to FRC
mode as a transition clock source between the two PLL modes.
Reset values for these bits are determined by the FNOSC Configuration bits.
Unimplemented: Read as ‘0’
COSC<2:0>: Current Oscillator Selection bits (read-only)
111 = Fast RC Oscillator (FRC) with Divide-by-n
110 = Fast RC Oscillator (FRC) with Divide-by-16
101 = Low-Power RC Oscillator (LPRC)
100 = Reserved
011 = Primary Oscillator (XT, HS, EC) with PLL
010 = Primary Oscillator (XT, HS, EC)
001 = Fast RC Oscillator (FRC) with divide-by-N and PLL (FRCPLL)
000 = Fast RC Oscillator (FRC)
Unimplemented: Read as ‘0’
NOSC<2:0>: New Oscillator Selection bits
111 = Fast RC Oscillator (FRC) with Divide-by-n
110 = Fast RC Oscillator (FRC) with Divide-by-16
101 = Low-Power RC Oscillator (LPRC)
100 = Reserved
011 = Primary Oscillator (XT, HS, EC) with PLL
010 = Primary Oscillator (XT, HS, EC)
001 = Fast RC Oscillator (FRC) with divide-by-N and PLL (FRCPLL)
000 = Fast RC Oscillator (FRC)
CLKLOCK: Clock Lock Enable bit
1 = If (FCKSM0 = 1), then clock and PLL configurations are locked
0 = Clock and PLL selections are not locked, configurations may be modified
IOLOCK: I/O Lock Enable bit
1 = I/O Lock is active
0 = I/O Lock is not active
LOCK: PLL Lock Status bit (read-only)
1 = Indicates that PLL is in lock, or PLL start-up timer is satisfied
0 = Indicates that PLL is out of lock, start-up timer is in progress or PLL is disabled
Unimplemented: Read as ‘0’
IOLOCK
R/W-0
If (FCKSM0 = 0), then clock and PLL configurations may be modified
R-0
OSCCON: OSCILLATOR CONTROL REGISTER
COSC<2:0>
y = Value set from Configuration bits on POR
W = Writable bit
‘1’ = Bit is set
LOCK
R-0
R-0
R-0
U-0
—
(2,3)
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
U-0
CF
—
R/W-y
(1)
U-0
—
2011-2012 Microchip Technology Inc.
NOSC<2:0>
x = Bit is unknown
R/W-y
U-0
—
(2,3)
OSWEN
R/W-y
R/W-0
bit 8
bit 0
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