PIC12C508A Microchip Technology, PIC12C508A Datasheet - Page 18

• Manufacturer Part Number: PIC12C508A
• Description: 8-Pin/ 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC12C5XX
4.5
The Oscillator Calibration (OSCCAL) register is used to
calibrate the internal 4 MHz oscillator. It contains four to
six bits for calibration.
increases the frequency. See Section 7.2.5 for more
information on the internal oscillator.
FIGURE 4-6:
FIGURE 4-7:
DS40139E-page 18
bit7
bit7
bit 7-4: CAL<3:0>: Calibration
bit 3-0: Unimplemented: Read as ’0’
bit 7-2: CAL<5:0>: Calibration
bit 1-0: Unimplemented: Read as ’0’
R/W-0
R/W-1
CAL3
CAL5
OSCCAL Register
R/W-1
R/W-0
CAL2
CAL4
OSCCAL REGISTER (ADDRESS 05h) FOR PIC12C508 AND PIC12C509
OSCCAL REGISTER (ADDRESS 05h) FOR PIC12C508A/C509A/CR509A/12CE518/
12CE519
R/W-1
R/W-0
CAL1
CAL3
Increasing the cal value
R/W-1
R/W-0
CAL0
CAL2
R/W-0
R/W-0
CAL1
—
R/W-0
R/W-0
CAL0
—
U-0
U-0
—
—
U-0
U-0
—
—
bit0
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
1999 Microchip Technology Inc.
read as ‘0’
read as ‘0’