PIC16F1459-ESSQTP datasheet(78/418 Pages) MICROCHIP

78 / 418 page

PIC16(L)F1454/5/9

DS41639A-page 78

Preliminary

 2012 Microchip Technology Inc.

TABLE 5-4:

SUMMARY OF REGISTERS ASSOCIATED WITH CLOCK SOURCES

TABLE 5-5:

SUMMARY OF CONFIGURATION WORD WITH CLOCK SOURCES

ACTCON: ACTIVE CLOCK TUNING (ACT) CONTROL REGISTER

R/W-0/0

U-0

R/W-0/0

R-0/0

U-0

R-0/0

U-0

ACTEN

ACTUD

—ACTSRC(1)

ACTLOCK

—ACTORS

—

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

u = Bit is unchanged

x = Bit is unknown

-n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set

‘0’ = Bit is cleared

bit 7

ACTEN: Active Clock Tuning Selection bit

1 = ACT is enabled, updates to OSCTUNE are exclusive to the ACT

0 = ACT is disabled

bit 6

ACTUD: Active Clock Tuning Update Disable bit

1 = Updates to the OSCTUNE register from ACT are disabled

0 = Updates to the OSCTUNE register from ACT are enabled

bit 5

Unimplemented: Read as ‘0’

bit 4

ACTSRC: Active Clock Tuning Source Selection bit

1 = The HFINTOSC oscillator is tuned using Fll-speed USB events

0 = The HFINTOSC oscillator is tuned using the 32.768 kHz oscillator (SOSC) clock source

bit 3

ACTLOCK: Active Clock Tuning Lock Status bit

1 = Locked; 16 MHz internal oscillator is within ± 0.20%.Locked

0 = Not locked; 16 MHz internal oscillator tuning has not stabilized within ± 0.20%

bit 2

Unimplemented: Read as ‘0’

bit 1

ACTORS: Active Clock Tuning Out-of-Range Status bit

1 = Out-of-range; oscillator frequency is outside of the OSCTUNE range

0 = In-range; oscillator frequency is within the OSCTUNE range

bit 0

Unimplemented: Read as ‘0’

Note 1:

The ACTSRC bit should only be changed when ACTEN = 0.

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

on Page

ACTCON

ACTEN

ACTUD

—

ACTSRC

ACTLOCK

—ACTORS

—

OSCCON

SPLLEN

SPLLMULT

IRCF<3:0>

SCS<1:0>

OSCSTAT

SOSCR

PLLRDY

OSTS

HFIOFR

—

LFIOFR

HFIOFS

OSCTUNE

—

TUNE<6:0>

PIR2

OSFIF

C2IF

C1IF

—

BCL1IF

USBIF

ACTIF

—

PIE2

OSFIE

C2IE

C1IE

—

BCL1IE

USBIE

ACTIE

—

100

T1CON

TMR1CS<1:0>

T1CKPS<1:0>

T1OSCEN

T1SYNC

—

TMR1ON

195

Legend:

— = unimplemented location, read as ‘0’. Shaded cells are not used by clock sources.

Name

Bits

Bit -/7

Bit -/6

Bit 13/5

Bit 12/4

Bit 11/3

Bit 10/2

Bit 9/1

Bit 8/0

on Page

CONFIG1

13:8

—

FCMEN

IESO

CLKOUTEN

BOREN<1:0>

—

7:0

MCLRE

PWRTE

WDTE<1:0>

FOSC<2:0>

Legend:

— = unimplemented location, read as ‘0’. Shaded cells are not used by clock sources.

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