48GA004 datasheet(99/268 Pages) MICROCHIP

номер детали	48GA004

подробное описание детали	28/44-Pin General Purpose, 16-Bit Flash Microcontrollers

PDF	268 Pages

Scroll/Zoom	100%

производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

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99 / 268 page

 2010 Microchip Technology Inc.

DS39881D-page 99

PIC24FJ64GA004 FAMILY

CLKDIV: CLOCK DIVIDER REGISTER

R/W-0

R/W-1

R/W-0

R/W-1

ROI

DOZE2

DOZE1

DOZE0

DOZEN(1)

RCDIV2

RCDIV1

RCDIV0

bit 15

bit 8

U-0

U-1

U-0

—

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

ROI:

Recover on Interrupt bit

= Interrupts clear the DOZEN bit and reset the CPU peripheral clock ratio to 1:1

= Interrupts have no effect on the DOZEN bit

bit 14-12

DOZE2:DOZE0:

CPU Peripheral Clock Ratio Select bits

111

= 1:128

110

= 1:64

101

= 1:32

100

= 1:16

011

= 1:8

010

= 1:4

001

= 1:2

000

= 1:1

bit 11

DOZEN:

DOZE Enable bit(1)

= DOZE2:DOZE0 bits specify the CPU peripheral clock ratio

= CPU peripheral clock ratio set to 1:1

bit 10-8

RCDIV2:RCDIV0:

FRC Postscaler Select bits

111

= 31.25 kHz (divide by 256)

110

= 125 kHz (divide by 64)

101

= 250 kHz (divide by 32)

100

= 500 kHz (divide by 16)

011

= 1 MHz (divide by 8)

010

= 2 MHz (divide by 4)

001

= 4 MHz (divide by 2)

000

= 8 MHz (divide by 1)

bit 7

Unimplemented:

Read as ‘0’

bit 6

Unimplemented:

Read as ‘1’

bit 5-0

Unimplemented:

Read as ‘0’

Note 1:

This bit is automatically cleared when the ROI bit is set and an interrupt occurs.

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