參數(shù)資料
型號: 16F630
廠商: Microchip Technology Inc.
英文描述: 14-Pin FLASH-Based 8-Bit CMOS Microcontrollers
中文描述: 14引腳基于閃存的8位CMOS微控制器
文件頁數(shù): 18/132頁
文件大?。?/td> 2651K
代理商: 16F630
PIC16F630/676
DS40039C-page 16
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 — NTERNAL OSCILLATOR CALIBRATION REGISTER (ADDRESS: 90h)
U-0
U-0
U-0
U-0
U-0
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
R/W-0
R/W-0
R/W-0
R/W-0
U-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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