10F202 datasheet(17/88 Pages) MICROCHIP

17 / 88 page

 2004-2014 Microchip Technology Inc.

DS40001239F-page 17

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.

OSCCAL REGISTER

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)

= INTOSC/4 output onto GP2

= GP2/T0CKI/COUT applied to GP2

Note 1:

Overrides GP2/T0CKI/COUT control registers when enabled.

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