70592C datasheet(134/314 Pages) MICROCHIP

134 / 314 page

PIC24HJXXXGPX06A/X08A/X10A

DS70592C-page 134

OSCTUN: FRC OSCILLATOR TUNING REGISTER(2)

U-0

—

bit 15

bit 8

U-0

R/W-0

—

TUN<5:0>(1)

bit 7

bit 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

bit 15-6

Unimplemented: Read as ‘0’

bit 5-0

TUN<5:0>: FRC Oscillator Tuning bits(1)

111111 = Center frequency – 0.375% (7.345 MHz)

•

100001 = Center frequency – 11.625% (6.52 MHz)

100000 = Center frequency – 12% (6.49 MHz)

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)

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.

2: This register is reset only on a Power-on Reset (POR).

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