Microchip Technology TDGL019 Data Sheet

DS60001168F-page 103

PIC32MX1XX/2XX

REGISTER 8-4:

REFOTRIM: REFERENCE OSCILLATOR TRIM REGISTER

Bit

Range

Bit

31/23/15/7

Bit

30/22/14/6

Bit

29/21/13/5

Bit

28/20/12/4

Bit

27/19/11/3

Bit

26/18/10/2

Bit

25/17/9/1

Bit

24/16/8/0

31:24

R/W-0

ROTRIM<8:1>

23:16

R/W-0

R-0

U-0

ROTRIM<0>

—

15:8

U-0

R-0

U-0

—

7:0

U-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 31-23 ROTRIM<8:0>: Reference Oscillator Trim bits

111111111

= 511/512 divisor added to RODIV value

111111110

= 510/512 divisor added to RODIV value

•
•
•
100000000

= 256/512 divisor added to RODIV value

•
•
•
000000010

= 2/512 divisor added to RODIV value

000000001

= 1/512 divisor added to RODIV value

000000000

= 0/512 divisor added to RODIV value

bit 22-0

Unimplemented:

Read as ‘0’

Note:

While the ON (REFOCON<15>) bit is ‘1’, writes to this register do not take effect until the DIVSWEN bit is
also set to ‘1’.