PIC18F47J53 Datasheet, PDF (224/586 Pages) Microchip Technology – 28/44-Pin, High-Performance USB Microcontrollers with nanoWatt XLP Technology

PIC18F47J53 FAMILY
REGISTER 15-3: OSCCON2: OSCILLATOR CONTROL REGISTER 2 (ACCESS F87h)
U-0
R-0⁽²⁾
U-0
R/W-1
R/W-0⁽²⁾
R/W-1
U-0
—
SOSCRUN
—
SOSCDRV SOSCGO⁽³⁾
PRISD
—
bit 7
U-0
—
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1-0
Unimplemented: Read as ‘0’
SOSCRUN: SOSC Run Status bit
1 = System clock comes from secondary SOSC
0 = System clock comes from an oscillator other than SOSC
Unimplemented: Read as ‘0’
SOSCDRV: SOSC Drive Control bit
1 = T1OSC/SOSC circuit oscillator drive circuit selected by Configuration bits, CONFIG2L<4:3>
0 = Low-power T1OSC/SOSC circuit is selected
SOSCGO: Oscillator Start Control bit
1 = Turns on the oscillator, even if no peripherals are requesting it.
0 = Oscillator is shut off unless peripherals are requesting it
PRISD: Primary Oscillator Drive Circuit shutdown
1 = Oscillator drive circuit on
0 = Oscillator drive circuit off (zero power)
Unimplemented: Read as ‘0’
Note 1:
2:
3:
Reset value is ‘0’ when Two-Speed Start-up is enabled and ‘1’ if disabled.
Default output frequency of INTOSC on Reset (4 MHz).
When the SOSC is selected to run from a digital clock input, rather than an external crystal, this bit has no
effect.
DS39964B-page 224
Preliminary
 2010 Microchip Technology Inc.