PIC32MX230F128L-I/PF 查看數據表（PDF） - Microchip Technology

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PIC32MX230F128L-I/PF

32-bit Microcontrollers (up to 512 KB Flash and 64 KB SRAM) with Audio/Graphics/Touch (HMI), CAN, USB, and Advanced Analog

Microchip Technology 

PIC32MX1XX/2XX/5XX 64/100-PIN FAMILY

REGISTER 8-4: REFOTRIM: REFERENCE OSCILLATOR TRIM REGISTER

Bit

Bit

Bit

Bit

Bit

Bit

Bit

Range 31/23/15/7 30/22/14/6 29/21/13/5 28/20/12/4 27/19/11/3 26/18/10/2

31:24

R/W-0

23:16

15:8

7:0

R/W-0

ROTRIM<0>

U-0

—

U-0

—

R/W-0

U-0

—

U-0

—

U-0

—

R/W-0

U-0

—

U-0

—

U-0

—

R/W-0

R/W-0

ROTRIM<8:1>

U-0

U-0

—

—

U-0

U-0

—

—

U-0

U-0

—

—

R/W-0

U-0

—

U-0

—

U-0

—

Bit

25/17/9/1

R/W-0

U-0

—

U-0

—

U-0

—

Bit

24/16/8/0

R/W-0

U-0

—

U-0

—

U-0

—

Legend:

R = Readable bit

-n = Value at POR

y = Value set from Configuration bits on POR

W = Writable bit

U = Unimplemented bit, read as ‘0’

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

also set to ‘1’.

 2014-2017 Microchip Technology Inc.

DS60001290E-page 83

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