PIC12C672 MICROCHIP [Microchip Technology], PIC12C672 Datasheet - Page 16

• Manufacturer Part Number: PIC12C672
• Description: 8-Pin, 8-Bit CMOS Microcontroller with EEPROM Data Memory
• Manufacturer: MICROCHIP [Microchip Technology]

PIC12CE5XX
4.5
The Oscillator Calibration (OSCCAL) register is used to
calibrate the internal 4 MHz oscillator. It contains four
bits for fine calibration and two other bits to either
increase or decrease frequency.
FIGURE 4-6:
DS40172A-page 16
bit7
Note:
bit 7-4: CAL<3:0>: Fine calibration
bit 3:
bit 2:
bit 1-0: Unimplemented: Read as '0'
R/W-0
CAL3
OSCCAL Register
If CALFST = 1 and CALSLW = 1, CALFST has precedence.
CALFST: Calibration Fast
1 = Increase frequency
0 = No change
CALSLW: Calibration Slow
1 = Decrease frequency
0 = No change
R/W-1
CAL2
OSCCAL REGISTER (ADDRESS 8Fh)
R/W-1
CAL1
R/W-1
CAL0
CALFST
R/W-0
Preliminary
CALSLW
R/W-0
U-0
—
U-0
—
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
1997 Microchip Technology Inc.
read as ‘0’