參數(shù)資料
型號(hào): PIC12C67X
廠商: Microchip Technology Inc.
英文描述: 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter and EEPROM Data Memory
中文描述: 8引腳,8位CMOS微控制器與A / D轉(zhuǎn)換器和EEPROM數(shù)據(jù)存儲(chǔ)器
文件頁數(shù): 21/129頁
文件大?。?/td> 931K
代理商: PIC12C67X
1999 Microchip Technology Inc.
DS30561B-page 21
PIC12C67X
4.2.2.7
OSCCAL REGISTER
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.
REGISTER 4-7:
OSCCAL REGISTER (ADDRESS 8Fh)
R/W-0
CAL3
bit7
R/W-1
CAL2
R/W-1
CAL1
R/W-1
CAL0
R/W-0
CALFST
R/W-0
CALSLW
U-0
U-0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit0
bit 7-4:
bit 3:
CAL<3:0>:
Fine Calibration
CALFST:
Calibration Fast
1
= Increase frequency
0
= No change
CALSLW:
Calibration Slow
1
= Decrease frequency
0
= No change
Unimplemented:
Read as ’0’
bit 2:
bit 1-0:
Note:
If CALFST = 1 and CALSLW = 1, CALFST has precedence.
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