PIC16LF1904 Datasheet, PDF (65/288 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC16LF1904/6/7
REGISTER 6-2: OSCSTAT: OSCILLATOR STATUS REGISTER
R-1/q
U-0
R-q/q
R-0/q
U-0
U-0
T1OSCR
—
OSTS
HFIOFR
—
—
bit 7
R-0/0
LFIOFR
R-0/q
HFIOFS
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
q = Conditional
bit 7
bit 6
bit 5
bit 4
bit 3-2
bit 1
bit 0
T1OSCR: Timer1 Oscillator Ready bit
If T1OSCEN = 1:
1 = Timer1 oscillator is ready
0 = Timer1 oscillator is not ready
If T1OSCEN = 0:
1 = Timer1 clock source is always ready
Unimplemented: Read as ‘0’
OSTS: Oscillator Start-up Time-out Status bit
1 = Running from the external clock source (EC)
0 = Running from an internal oscillator (FOSC<1:0> = 00)
HFIOFR: High-Frequency Internal Oscillator Ready bit
1 = HFINTOSC is ready
0 = HFINTOSC is not ready
Unimplemented: Read as ‘0’
LFIOFR: Low-Frequency Internal Oscillator Ready bit
1 = LFINTOSC is ready
0 = LFINTOSC is not ready
HFIOFS: High-Frequency Internal Oscillator Stable bit
1 = HFINTOSC 16 MHz oscillator is stable and is driving the INTOSC
0 = HFINTOSC 16 MHz oscillator is not stable, the start-up oscillator is driving INTOSC
TABLE 6-1: SUMMARY OF REGISTERS ASSOCIATED WITH CLOCK SOURCES
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
OSCCON
—
IRCF<3:0>
—
SCS<1:0>
OSCSTAT T1OSCR
—
OSTS HFIOFR
—
—
LFIOFR HFIOFS
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
64
65
151
TABLE 6-2: 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
CONFIG1
Legend:
13:8
—
—
—
—
CLKOUTEN
BOREN<1:0>
—
7:0
CP
MCLRE PWRTE
WDTE<1:0>
—
FOSC<1:0>
— = unimplemented location, read as ‘0’. Shaded cells are not used by clock sources.
Register
on Page
44
 2011 Microchip Technology Inc.
Preliminary
DS41569A-page 65