DSPIC33FJ32GP302T-I/SO 데이터 시트보기 (PDF) - Microchip Technology
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DSPIC33FJ32GP302T-I/SO Datasheet PDF : 402 Pages
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dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 9-4: OSCTUN: FRC OSCILLATOR TUNING REGISTER
U-0
—
bit 15
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
U-0
U-0
—
—
bit 8
U-0
—
bit 7
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
TUN<5:0>(1)
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-6
bit 5-0
Unimplemented: Read as ‘0’
TUN<5:0>: FRC Oscillator Tuning bits(1)
011111 = Center frequency +11.625% (8.23 MHz)
011110 = Center frequency +11.25% (8.20 MHz)
•
•
•
000001 = Center frequency +0.375% (7.40 MHz)
000000 = Center frequency (7.37 MHz nominal)
111111 = Center frequency -0.375% (7.345 MHz)
•
•
•
100001 = Center frequency -11.625% (6.52 MHz)
100000 = Center frequency -12% (6.49 MHz)
Note 1: OSCTUN functionality has been provided to help customers compensate for temperature effects on the
FRC frequency over a wide range of temperatures. The tuning step size is an approximation and is neither
characterized nor tested.
2009 Microchip Technology Inc.
Preliminary
DS70292D-page 149
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