Datasheet

PIC10F200/202/204/206

4.6 OSCCAL Register

The Oscillator Calibration (OSCCAL) register is used to

calibrate the internal precision 4 MHz oscillator. It

contains seven bits for calibration

After you move in the calibration constant, do not

change the value. See Section 9.2.2 “Internal 4 MHz

Oscillator”.

Note: Erasing the device will also erase the pre-

programmed internal calibration value for

the internal oscillator. The calibration

value must be read prior to erasing the

part so it can be reprogrammed correctly

later.

R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-0

CAL6 CAL5 CAL4 CAL3 CAL2 CAL1 CAL0 FOSC4

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 7-1 CAL<6:0>: Oscillator Calibration bits

0111111 = Maximum frequency

•

0000001

0000000 = Center frequency

1111111

•

1000000 =Minimum frequency

bit 0 FOSC4: INTOSC/4 Output Enable bit

(1)

1 = INTOSC/4 output onto GP2

0 = GP2/T0CKI/COUT applied to GP2

Note 1: Overrides GP2/T0CKI/COUT control registers when enabled.