PIC16F526 Datasheet, PDF (20/122 Pages) Microchip Technology – 14-Pin, 8-Bit Flash Microcontroller

PIC16F526
4.5 OSCCAL Register
The Oscillator Calibration (OSCCAL) register is used
to calibrate the 8 MHz internal oscillator macro. It
contains 7 bits of calibration that uses a two’s
complement scheme for controlling the oscillator speed.
See Register 4-3 for details.
REGISTER 4-3: OSCCAL: OSCILLATOR CALIBRATION REGISTER
R/W-1
CAL6
bit 7
R/W-1
CAL5
R/W-1
CAL4
R/W-1
CAL3
R/W-1
CAL2
R/W-1
CAL1
R/W-1
CAL0
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 7-1
bit 0
CAL<6:0>: Oscillator Calibration bits
0111111 = Maximum frequency
•
•
•
0000001
0000000 = Center frequency
1111111
•
•
•
1000000 = Minimum frequency
Unimplemented: Read as ‘0’
DS41326D-page 20
 2010 Microchip Technology Inc.