参数资料
型号: RFPIC12F675K-E/SS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDSO20
封装: 0.209 INCH, PLASTIC, MO-150, SSOP-20
文件页数: 32/123页
文件大小: 5438K
代理商: RFPIC12F675K-E/SS
rfPIC12F675
DS70091A-page 14
Preliminary
2003 Microchip Technology Inc.
2.2.2.6
PCON Register
The Power Control (PCON) register contains flag bits
to differentiate between a:
Power-on Reset (POR)
Brown-out Detect (BOD)
Watchdog Timer Reset (WDT)
External MCLR Reset
The PCON Register bits are shown in Register 2-6.
REGISTER 2-6:
PCON — POWER CONTROL REGISTER (ADDRESS: 8Eh)
2.2.2.7
OSCCAL Register
The Oscillator Calibration register (OSCCAL) is used to
calibrate the internal 4 MHz oscillator. It contains 6 bits
to adjust the frequency up or down to achieve 4 MHz.
The OSCCAL register bits are shown in Register 2-7.
REGISTER 2-7:
OSCCAL — OSCILLATOR CALIBRATION REGISTER (ADDRESS: 90h)
U-0
R/W-0
R/W-x
POR
BOD
bit 7
bit 0
bit 7-2
Unimplemented: Read as '0'
bit 1
POR: Power-on Reset STATUS bit
1 = No Power-on Reset occurred
0 = A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)
bit 0
BOD: Brown-out Detect STATUS bit
1 = No Brown-out Detect occurred
0 = A Brown-out Detect occurred (must be set in software after a Brown-out Detect occurs)
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
R/W-1
R/W-0
U-0
CAL5
CAL4
CAL3
CAL2
CAL1
CAL0
bit 7
bit 0
bit 7-2
CAL5:CAL0: 6-bit Signed Oscillator Calibration bits
111111
= Maximum frequency
100000
= Center frequency
000000
= Minimum frequency
bit 1-0
Unimplemented: Read as '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
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