DSPIC30F3014_13 Datasheet, PDF (149/228 Pages) Microchip Technology – High-Performance,16-bit Digital Signal Controllers

dsPIC30F3014/4013
REGISTER 20-2: 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
U-0
U-0
R/W-0
R/W-0
R/W-0
R/W-0
—
—
—
TUN<3:0>
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 15-4
bit 3-0
Unimplemented: Read as ‘0’
TUN<3:0>: TUN Field Lower Two bits
The four-bit field specified by TUN<3:0> specifies the user tuning capability for the internal fast RC
oscillator (nominal 7.37 MHz).
0111 = Maximum frequency
0110 =
0101 =
0100 =
0011 =
0010 =
0001 =
0000 = Center frequency, oscillator is running at calibrated frequency
1111 =
1110 =
1101 =
1100 =
1011 =
1010 =
1001 =
1000 = Minimum frequency
 2010 Microchip Technology Inc.
DS70138G-page 149