PIC16LF1454 Datasheet, PDF (78/418 Pages) Microchip Technology – 14/20-Pin Flash, 8-Bit USB Microcontrollers with XLP Technology

PIC16(L)F1454/5/9
REGISTER 5-4: ACTCON: ACTIVE CLOCK TUNING (ACT) CONTROL REGISTER
R/W-0/0
ACTEN
bit 7
R/W-0/0
ACTUD
U-0
R/W-0/0
R-0/0
U-0
—
ACTSRC⁽¹⁾ ACTLOCK
—
R-0/0
ACTORS
U-0
—
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
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.
TABLE 5-4: SUMMARY OF REGISTERS ASSOCIATED WITH CLOCK SOURCES
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
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
—
T1CON
TMR1CS<1:0>
T1CKPS<1:0>
T1OSCEN T1SYNC
—
TMR1ON
Legend: — = unimplemented location, read as ‘0’. Shaded cells are not used by clock sources.
Register
on Page
75
75
76
77
98
100
195
TABLE 5-5: SUMMARY OF CONFIGURATION WORD WITH 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
13:8
—
CONFIG1
7:0
CP
—
MCLRE
FCMEN
PWRTE
IESO CLKOUTEN
WDTE<1:0>
BOREN<1:0>
—
FOSC<2:0>
Legend: — = unimplemented location, read as ‘0’. Shaded cells are not used by clock sources.
Register
on Page
52
DS41639A-page 78
Preliminary
 2012 Microchip Technology Inc.