PIC24EP256GU810-I Datasheet, PDF (184/622 Pages) Electronic Film Capacitors, Inc. – 16-Bit Microcontrollers and Digital Signal Controllers with High-Speed PWM, USB and Advanced Analog

dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
REGISTER 9-2: CLKDIV: CLOCK DIVISOR REGISTER⁽²⁾
R/W-0
ROI
bit 15
R/W-0
R/W-1
DOZE<2:0>⁽³⁾
R/W-1
R/W-0
DOZEN^(1,4)
R/W-0
R/W-0
FRCDIV<2:0>
R/W-0
bit 8
R/W-0
R/W-1
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
PLLPOST<1:0>
—
PLLPRE<4:0>
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
y = Value set from Configuration bits on POR
W = Writable bit
U = Unimplemented bit, read as ‘0’
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
bit 14-12
bit 11
bit 10-8
bit 7-6
bit 5
ROI: Recover on Interrupt bit
1 = Interrupts will clear the DOZEN bit and the processor clock and peripheral clock ratio is set to 1:1
0 = Interrupts have no effect on the DOZEN bit
DOZE<2:0>: Processor Clock Reduction Select bits⁽³⁾
111 = FCY divided by 128
110 = FCY divided by 64
101 = FCY divided by 32
100 = FCY divided by 16
011 = FCY divided by 8 (default)
010 = FCY divided by 4
001 = FCY divided by 2
000 = FCY divided by 1
DOZEN: Doze Mode Enable bit^(1,4)
1 = DOZE<2:0> field specifies the ratio between the peripheral clocks and the processor clocks
0 = Processor clock and peripheral clock ratio forced to 1:1
FRCDIV<2:0>: Internal Fast RC Oscillator Postscaler bits
111 = FRC divided by 256
110 = FRC divided by 64
101 = FRC divided by 32
100 = FRC divided by 16
011 = FRC divided by 8
010 = FRC divided by 4
001 = FRC divided by 2
000 = FRC divided by 1 (default)
PLLPOST<1:0>: PLL VCO Output Divider Select bits (also denoted as ‘N2’, PLL postscaler)
11 = Output divided by 8
10 = Reserved
01 = Output divided by 4 (default)
00 = Output divided by 2
Unimplemented: Read as ‘0’
Note 1:
2:
3:
4:
This bit is cleared when the ROI bit is set and an interrupt occurs.
This register resets only on a Power-on Reset (POR).
DOZE<2:0> bits can only be written to when the DOZEN bit is clear. If DOZEN = 1, any writes to
DOZE<2:0> are ignored.
The DOZEN bit cannot be set if DOZE<2:0> = 000. If DOZE<2:0> = 000, any attempt by user software to
set the DOZEN bit is ignored.
DS70616G-page 184
 2009-2012 Microchip Technology Inc.